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Finding the Fourth Proportional to 110,045.92, 165,134.46 and 39,930.70

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Solution

The fourth proportional to 110,045.92, 165,134.46 and 39,930.70 is: 59,919.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    110,045.92 : 165,134.46 = 39,930.70 : x
  2. Step 2: Convert to fraction form
    110,045.92/165,134.46 = 39,930.70/x
  3. Step 3: Cross multiply
    110,045.92x = 165,134.46 × 39,930.70
  4. Step 4: Simplify right side
    110,045.92x = 6,593,934,581.92
  5. Step 5: Solve for x
    x = 6,593,934,581.92/110,045.92
  6. Step 6: Final answer
    x = 59,919.85

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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.