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Finding the Fourth Proportional to 87,861.60, 131,792.40 and 76,051.80

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Solution

The fourth proportional to 87,861.60, 131,792.40 and 76,051.80 is: 114,077.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,861.60 : 131,792.40 = 76,051.80 : x
  2. Step 2: Convert to fraction form
    87,861.60/131,792.40 = 76,051.80/x
  3. Step 3: Cross multiply
    87,861.60x = 131,792.40 × 76,051.80
  4. Step 4: Simplify right side
    87,861.60x = 10,023,049,246.32
  5. Step 5: Solve for x
    x = 10,023,049,246.32/87,861.60
  6. Step 6: Final answer
    x = 114,077.70

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