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Finding the Fourth Proportional to 132,657.70, 198,719.52 and 61,480.30

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Solution

The fourth proportional to 132,657.70, 198,719.52 and 61,480.30 is: 92,096.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,657.70 : 198,719.52 = 61,480.30 : x
  2. Step 2: Convert to fraction form
    132,657.70/198,719.52 = 61,480.30/x
  3. Step 3: Cross multiply
    132,657.70x = 198,719.52 × 61,480.30
  4. Step 4: Simplify right side
    132,657.70x = 12,217,335,705.46
  5. Step 5: Solve for x
    x = 12,217,335,705.46/132,657.70
  6. Step 6: Final answer
    x = 92,096.69

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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.