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Finding the Fourth Proportional to 80,951.52, 121,407.68 and 41,488.32

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Solution

The fourth proportional to 80,951.52, 121,407.68 and 41,488.32 is: 62,222.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,951.52 : 121,407.68 = 41,488.32 : x
  2. Step 2: Convert to fraction form
    80,951.52/121,407.68 = 41,488.32/x
  3. Step 3: Cross multiply
    80,951.52x = 121,407.68 × 41,488.32
  4. Step 4: Simplify right side
    80,951.52x = 5,037,000,678.30
  5. Step 5: Solve for x
    x = 5,037,000,678.30/80,951.52
  6. Step 6: Final answer
    x = 62,222.43

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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.