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Finding the Fourth Proportional to 87,807.60, 131,711.40 and 35,254.80

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Solution

The fourth proportional to 87,807.60, 131,711.40 and 35,254.80 is: 52,882.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,807.60 : 131,711.40 = 35,254.80 : x
  2. Step 2: Convert to fraction form
    87,807.60/131,711.40 = 35,254.80/x
  3. Step 3: Cross multiply
    87,807.60x = 131,711.40 × 35,254.80
  4. Step 4: Simplify right side
    87,807.60x = 4,643,459,064.72
  5. Step 5: Solve for x
    x = 4,643,459,064.72/87,807.60
  6. Step 6: Final answer
    x = 52,882.20

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.