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Finding the Fourth Proportional to 87,691.98, 120,986.26 and 53,665.00

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Solution

The fourth proportional to 87,691.98, 120,986.26 and 53,665.00 is: 74,040.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,691.98 : 120,986.26 = 53,665.00 : x
  2. Step 2: Convert to fraction form
    87,691.98/120,986.26 = 53,665.00/x
  3. Step 3: Cross multiply
    87,691.98x = 120,986.26 × 53,665.00
  4. Step 4: Simplify right side
    87,691.98x = 6,492,727,206.27
  5. Step 5: Solve for x
    x = 6,492,727,206.27/87,691.98
  6. Step 6: Final answer
    x = 74,040.15

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