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Finding the Fourth Proportional to 87,693.60, 131,540.40 and 76,029.60

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Solution

The fourth proportional to 87,693.60, 131,540.40 and 76,029.60 is: 114,044.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,693.60 : 131,540.40 = 76,029.60 : x
  2. Step 2: Convert to fraction form
    87,693.60/131,540.40 = 76,029.60/x
  3. Step 3: Cross multiply
    87,693.60x = 131,540.40 × 76,029.60
  4. Step 4: Simplify right side
    87,693.60x = 10,000,963,995.84
  5. Step 5: Solve for x
    x = 10,000,963,995.84/87,693.60
  6. Step 6: Final answer
    x = 114,044.40

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