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Finding the Fourth Proportional to 71,402.40, 107,103.60 and 59,997.60

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Solution

The fourth proportional to 71,402.40, 107,103.60 and 59,997.60 is: 89,996.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,402.40 : 107,103.60 = 59,997.60 : x
  2. Step 2: Convert to fraction form
    71,402.40/107,103.60 = 59,997.60/x
  3. Step 3: Cross multiply
    71,402.40x = 107,103.60 × 59,997.60
  4. Step 4: Simplify right side
    71,402.40x = 6,425,958,951.36
  5. Step 5: Solve for x
    x = 6,425,958,951.36/71,402.40
  6. Step 6: Final answer
    x = 89,996.40

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1.5x scale

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.