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Finding the Fourth Proportional to 88,691.63, 132,958.31 and 32,518.61

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Solution

The fourth proportional to 88,691.63, 132,958.31 and 32,518.61 is: 48,748.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,691.63 : 132,958.31 = 32,518.61 : x
  2. Step 2: Convert to fraction form
    88,691.63/132,958.31 = 32,518.61/x
  3. Step 3: Cross multiply
    88,691.63x = 132,958.31 × 32,518.61
  4. Step 4: Simplify right side
    88,691.63x = 4,323,618,601.76
  5. Step 5: Solve for x
    x = 4,323,618,601.76/88,691.63
  6. Step 6: Final answer
    x = 48,748.89

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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.