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Finding the Fourth Proportional to 111,385.20, 166,948.20 and 44,792.40

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Solution

The fourth proportional to 111,385.20, 166,948.20 and 44,792.40 is: 67,136.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,385.20 : 166,948.20 = 44,792.40 : x
  2. Step 2: Convert to fraction form
    111,385.20/166,948.20 = 44,792.40/x
  3. Step 3: Cross multiply
    111,385.20x = 166,948.20 × 44,792.40
  4. Step 4: Simplify right side
    111,385.20x = 7,478,010,553.68
  5. Step 5: Solve for x
    x = 7,478,010,553.68/111,385.20
  6. Step 6: Final answer
    x = 67,136.48

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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.