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Finding the Fourth Proportional to 88,691.76, 132,931.86 and 41,242.80

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Solution

The fourth proportional to 88,691.76, 132,931.86 and 41,242.80 is: 61,815.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,691.76 : 132,931.86 = 41,242.80 : x
  2. Step 2: Convert to fraction form
    88,691.76/132,931.86 = 41,242.80/x
  3. Step 3: Cross multiply
    88,691.76x = 132,931.86 × 41,242.80
  4. Step 4: Simplify right side
    88,691.76x = 5,482,482,115.61
  5. Step 5: Solve for x
    x = 5,482,482,115.61/88,691.76
  6. Step 6: Final answer
    x = 61,815.01

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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.