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Finding the Fourth Proportional to 273,082.80, 409,624.20 and 86,113.20

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Solution

The fourth proportional to 273,082.80, 409,624.20 and 86,113.20 is: 129,169.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    273,082.80 : 409,624.20 = 86,113.20 : x
  2. Step 2: Convert to fraction form
    273,082.80/409,624.20 = 86,113.20/x
  3. Step 3: Cross multiply
    273,082.80x = 409,624.20 × 86,113.20
  4. Step 4: Simplify right side
    273,082.80x = 35,274,050,659.44
  5. Step 5: Solve for x
    x = 35,274,050,659.44/273,082.80
  6. Step 6: Final answer
    x = 129,169.80

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