How do you get that figure? A 9th level magic missile deals 11d4+11 points, +5 for Empowered Evocation. That's 43.5 points on average, not 93.5.At 93.50 per Magic Missile IX
Or did you think Empowered Evocation applied to each dart? I'll grant that the PHB could be read either way, but the errata clarifies that it applies to one damage roll of a spell, not each roll.