When I started training I think I did something like 110lbs for 3 or 4 reps. 
No you didn't.
Not saying you couldn't do it now or twice the weight, but you didn't lift 110lbs right away. That's 50kg dumbbells in old money. I've been training 18 years and besides myself, I've seen less than 5 people lift that or beyond. For real that is, not an internet fantasy or blatant lie. Less than 5 people AND that's trained people. Only once have I gone heavier than the 50kg dumbbells and that was the 60s which I managed 3 reps before failing into oblivion. There was in need to go higher than 50s as that shit blast your muscles just as much as the 70kg dumbbells would.
So no my friend, you're mistaken on those numbers.