Answer:
the self employment tax on 92.35% of your net income as self employed by 15.3% = $193,800 x 92.35% = $178,974.30
Miranda will pay social security (OASDI) taxes for the first $137,700 = $137,700 x 6.2% x 2 = $17,074.80
Her Medicare taxes will be calculated using $178,974.30 x 1.45% x 2 = $5,190.25
total self employment taxes = $17,074.80 + $5,190.25 = $22,265.05
Miranda can deduct 50% of her self employment taxes from her AGI = $22,265 x 50% = $11,132.50 ≈ $11,133