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Finding the Fourth Proportional to 132,295.70, 198,375.50 and 38,789.30

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Solution

The fourth proportional to 132,295.70, 198,375.50 and 38,789.30 is: 58,164.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,295.70 : 198,375.50 = 38,789.30 : x
  2. Step 2: Convert to fraction form
    132,295.70/198,375.50 = 38,789.30/x
  3. Step 3: Cross multiply
    132,295.70x = 198,375.50 × 38,789.30
  4. Step 4: Simplify right side
    132,295.70x = 7,694,846,782.15
  5. Step 5: Solve for x
    x = 7,694,846,782.15/132,295.70
  6. Step 6: Final answer
    x = 58,164.00

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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.