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Finding the Fourth Proportional to 91,251.92, 136,877.90 and 34,336.54

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Solution

The fourth proportional to 91,251.92, 136,877.90 and 34,336.54 is: 51,504.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,251.92 : 136,877.90 = 34,336.54 : x
  2. Step 2: Convert to fraction form
    91,251.92/136,877.90 = 34,336.54/x
  3. Step 3: Cross multiply
    91,251.92x = 136,877.90 × 34,336.54
  4. Step 4: Simplify right side
    91,251.92x = 4,699,913,488.47
  5. Step 5: Solve for x
    x = 4,699,913,488.47/91,251.92
  6. Step 6: Final answer
    x = 51,504.82

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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.