Your first transaction:
b4d87517560214b46ebaa6e22964a76c53ba4590a549c186dce2785a45925b0c has a fee of 2 sats/byte, so it isn't eligible for acceleration using ViaBTC.
Your second transaction:
7a70705f9583ecfbe9845752e80f89c455b289e80db4ecd3437e43632e15a047 has a fee of 10+ sats/byte but is still not eligible for acceleration use ViaBTC because it has transaction1 as an unconfirmed parent and it also includes a dust output.
If either of these addresses are yous:
1jcwYPUR4kj3fv5fnW8BH4J7ss1JdGL6v
1NfqxrTKHpbXLs1QjbK6tWRdmkRsA8woU7
You could possibly execute a "Child Pays For Parent" transaction using on of the outputs that go to those two addresses... pay a MASSIVE fee and a miner might then include all three transactions in a block to claim the fee.
I would guesstimate that your next transaction would probably be approximately 373 bytes (2 inputs, 1 output). So, in total, your 3 transactions would be approximately 226 + 700 + 373 = 1299 bytes. You'll want to pay like 250-300+ sats/bytes MINIMUM to try and get included in a block... so you'll want to pay a total fee across all 3 transactions of: 1299 * 250 = 324750 sats.
324750 sats / 373 bytes = 870.643431635 sats/byte.
So, if you can use one of those outputs in a transaction and include
at least an 870 sats/byte fee with it... you might get all three transactions confirmed.
NOTE: these calculations are based on your third transaction having 2 inputs, 1 output... any more inputs and outputs and it will be wrong.Your other options are:
1. Wait for the transactions to get dropped from the network and resend them again with proper fees
2. Pay a miner to include them in a block (ViatBTC charge 0.01 btc, btc.com service is variable)
