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Finding the Fourth Proportional to 132,898.78, 199,348.17 and 62,785.18

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Solution

The fourth proportional to 132,898.78, 199,348.17 and 62,785.18 is: 94,177.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,898.78 : 199,348.17 = 62,785.18 : x
  2. Step 2: Convert to fraction form
    132,898.78/199,348.17 = 62,785.18/x
  3. Step 3: Cross multiply
    132,898.78x = 199,348.17 × 62,785.18
  4. Step 4: Simplify right side
    132,898.78x = 12,516,110,736.12
  5. Step 5: Solve for x
    x = 12,516,110,736.12/132,898.78
  6. Step 6: Final answer
    x = 94,177.77

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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.