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Finding the Fourth Proportional to 71,292.74, 106,878.96 and 44,939.38

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Solution

The fourth proportional to 71,292.74, 106,878.96 and 44,939.38 is: 67,371.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,292.74 : 106,878.96 = 44,939.38 : x
  2. Step 2: Convert to fraction form
    71,292.74/106,878.96 = 44,939.38/x
  3. Step 3: Cross multiply
    71,292.74x = 106,878.96 × 44,939.38
  4. Step 4: Simplify right side
    71,292.74x = 4,803,074,197.44
  5. Step 5: Solve for x
    x = 4,803,074,197.44/71,292.74
  6. Step 6: Final answer
    x = 67,371.15

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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.