Is there a way to tie particlesystem size to skill area of effect radius?

I’ve created an explosion impact area of effect particle system, and was thinking about creating a skill that uses it.

Since the area of the explosion is hardcoded into the particle size setting, is there any way to increase the size based on the skill that uses it? I was thinking maybe there is a way to apply an FX to a skill on a level by level basis, and then I could resave the particlesystem 12 times with different sizes to match the area of effect to match the skill radius increase. Is that possible?

The latter is what you must do, though you can probably get away with 3-4 fx rather than 12 depending on how much you increase the radius.