Can a spayed female live peacefully with multiple intact male rats?

Question
I have a male rat about 1.5 years old. He is as sweet as pie. His brother passed away and I am getting him a baby male rat from a breeder to be his new cage mate. I am also interested in a spayed female my local shelter has available. Can they live together peacefully or will the spayed female cause fights between the males when the baby hits puberty. I believe the spayed female is about 5 months or 6 months?

Answer
The spayed female would be fine, but yes, you do need to worry about the males getting along. In fact, the adult male you have may hate the  pup your bringing in. He is 1.5 yrs old, being introduced to a rat pup, just take it very slow when introducing them and dont leave them alone for at least a month. How old will the pup be? The adult male would probably take to the spayed female faster than he would the male pup.