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Finding the Fourth Proportional to 88,487.40, 132,731.10 and 60,493.80

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Solution

The fourth proportional to 88,487.40, 132,731.10 and 60,493.80 is: 90,740.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,487.40 : 132,731.10 = 60,493.80 : x
  2. Step 2: Convert to fraction form
    88,487.40/132,731.10 = 60,493.80/x
  3. Step 3: Cross multiply
    88,487.40x = 132,731.10 × 60,493.80
  4. Step 4: Simplify right side
    88,487.40x = 8,029,408,617.18
  5. Step 5: Solve for x
    x = 8,029,408,617.18/88,487.40
  6. Step 6: Final answer
    x = 90,740.70

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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.