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Finding the Fourth Proportional to 87,450.54, 131,203.36 and 66,490.88

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Solution

The fourth proportional to 87,450.54, 131,203.36 and 66,490.88 is: 99,757.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,450.54 : 131,203.36 = 66,490.88 : x
  2. Step 2: Convert to fraction form
    87,450.54/131,203.36 = 66,490.88/x
  3. Step 3: Cross multiply
    87,450.54x = 131,203.36 × 66,490.88
  4. Step 4: Simplify right side
    87,450.54x = 8,723,826,292.45
  5. Step 5: Solve for x
    x = 8,723,826,292.45/87,450.54
  6. Step 6: Final answer
    x = 99,757.26

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