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Finding the Fourth Proportional to 91,097.98, 136,614.12 and 38,511.52

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Solution

The fourth proportional to 91,097.98, 136,614.12 and 38,511.52 is: 57,753.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,097.98 : 136,614.12 = 38,511.52 : x
  2. Step 2: Convert to fraction form
    91,097.98/136,614.12 = 38,511.52/x
  3. Step 3: Cross multiply
    91,097.98x = 136,614.12 × 38,511.52
  4. Step 4: Simplify right side
    91,097.98x = 5,261,217,414.66
  5. Step 5: Solve for x
    x = 5,261,217,414.66/91,097.98
  6. Step 6: Final answer
    x = 57,753.39

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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.