Its been a real long time since I have been a tire tech (more than a decade) but it looks like they screwed up on the balancing of your right rear. Maybe someone else can chime in...
Looks like they balanced it, applied weights and then the machine called for more weight in a different place so they applied more weight.
Like I said, I am no tech anymore... anyone??? If the wheel is truly calling for that much weight, perhaps you can rotate the tire on the wheel 180 degrees to offset the weight distribution on the tire and wheel.