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Finding the Fourth Proportional to 44,743.50, 67,115.79 and 20,119.50

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Solution

The fourth proportional to 44,743.50, 67,115.79 and 20,119.50 is: 30,179.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    44,743.50 : 67,115.79 = 20,119.50 : x
  2. Step 2: Convert to fraction form
    44,743.50/67,115.79 = 20,119.50/x
  3. Step 3: Cross multiply
    44,743.50x = 67,115.79 × 20,119.50
  4. Step 4: Simplify right side
    44,743.50x = 1,350,336,136.91
  5. Step 5: Solve for x
    x = 1,350,336,136.91/44,743.50
  6. Step 6: Final answer
    x = 30,179.49

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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.