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Finding the Fourth Proportional to 87,393.60, 120,614.40 and 59,097.60

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Solution

The fourth proportional to 87,393.60, 120,614.40 and 59,097.60 is: 81,562.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,393.60 : 120,614.40 = 59,097.60 : x
  2. Step 2: Convert to fraction form
    87,393.60/120,614.40 = 59,097.60/x
  3. Step 3: Cross multiply
    87,393.60x = 120,614.40 × 59,097.60
  4. Step 4: Simplify right side
    87,393.60x = 7,128,021,565.44
  5. Step 5: Solve for x
    x = 7,128,021,565.44/87,393.60
  6. Step 6: Final answer
    x = 81,562.28

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.