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Finding the Fourth Proportional to 136,446.72, 204,691.98 and 57,572.58

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Solution

The fourth proportional to 136,446.72, 204,691.98 and 57,572.58 is: 86,368.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,446.72 : 204,691.98 = 57,572.58 : x
  2. Step 2: Convert to fraction form
    136,446.72/204,691.98 = 57,572.58/x
  3. Step 3: Cross multiply
    136,446.72x = 204,691.98 × 57,572.58
  4. Step 4: Simplify right side
    136,446.72x = 11,784,645,393.91
  5. Step 5: Solve for x
    x = 11,784,645,393.91/136,446.72
  6. Step 6: Final answer
    x = 86,368.11

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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.