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Finding the Fourth Proportional to 132,717.12, 198,978.08 and 62,558.40

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Solution

The fourth proportional to 132,717.12, 198,978.08 and 62,558.40 is: 93,791.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,717.12 : 198,978.08 = 62,558.40 : x
  2. Step 2: Convert to fraction form
    132,717.12/198,978.08 = 62,558.40/x
  3. Step 3: Cross multiply
    132,717.12x = 198,978.08 × 62,558.40
  4. Step 4: Simplify right side
    132,717.12x = 12,447,750,319.87
  5. Step 5: Solve for x
    x = 12,447,750,319.87/132,717.12
  6. Step 6: Final answer
    x = 93,791.59

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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.