"Her decision helped a lot of people."

Translation: Jej decyzja pomogła wielu ludziom.

[stevenprob]

I cannot find a solution that uses dużo? for example, dużo ludzi, dużo ludziom... I am sure that wielu ludziom may well be best, but are there any versions with dużo that could also be used?
Many thanks.

[Kendra800150]

Dużo doesn't have a dative form, so if the context requires the dative case it is better to use wielu.