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Finding the Fourth Proportional to 136,863.78, 205,360.65 and 94,808.58

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Solution

The fourth proportional to 136,863.78, 205,360.65 and 94,808.58 is: 142,257.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,863.78 : 205,360.65 = 94,808.58 : x
  2. Step 2: Convert to fraction form
    136,863.78/205,360.65 = 94,808.58/x
  3. Step 3: Cross multiply
    136,863.78x = 205,360.65 × 94,808.58
  4. Step 4: Simplify right side
    136,863.78x = 19,469,951,614.38
  5. Step 5: Solve for x
    x = 19,469,951,614.38/136,863.78
  6. Step 6: Final answer
    x = 142,257.88

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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.