Whats in the pot?
PF: you raise to $7 and SB calls your $7 +BB blind $1 = $15
Flop: after all the raising is done on this street you've raised to $50 straight and he's called you= $100
Add turn: his bet of $70.
Total in pot: $185
you have to call $70 to win $185 at this point, with one card to come.
: 185/70 = 2.6 to 1
Odds to hit a FH with one card to come (holding trips): 17% = 4.8 to 1
You didn't have correct odds to call on the turn, even if the guy was guaranteed to put his remaining $92 in on the river.
eg. $185 + $92 = $277 divided by $70 turn call = 3.95 to 1 (still doesn't equal the 4.8 to 1 underdog you were on the turn).
I'm glad you got lucky, but the math wasn't there to make the $70 call.