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Finding the Fourth Proportional to 131,082.64, 180,753.96 and 86,292.88

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Solution

The fourth proportional to 131,082.64, 180,753.96 and 86,292.88 is: 118,991.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,082.64 : 180,753.96 = 86,292.88 : x
  2. Step 2: Convert to fraction form
    131,082.64/180,753.96 = 86,292.88/x
  3. Step 3: Cross multiply
    131,082.64x = 180,753.96 × 86,292.88
  4. Step 4: Simplify right side
    131,082.64x = 15,597,779,779.80
  5. Step 5: Solve for x
    x = 15,597,779,779.80/131,082.64
  6. Step 6: Final answer
    x = 118,991.96

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