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Finding the Fourth Proportional to 132,461.70, 198,624.15 and 38,955.30

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Solution

The fourth proportional to 132,461.70, 198,624.15 and 38,955.30 is: 58,412.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,461.70 : 198,624.15 = 38,955.30 : x
  2. Step 2: Convert to fraction form
    132,461.70/198,624.15 = 38,955.30/x
  3. Step 3: Cross multiply
    132,461.70x = 198,624.15 × 38,955.30
  4. Step 4: Simplify right side
    132,461.70x = 7,737,463,350.50
  5. Step 5: Solve for x
    x = 7,737,463,350.50/132,461.70
  6. Step 6: Final answer
    x = 58,412.83

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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.