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Finding the Fourth Proportional to 71,052.12, 106,578.18 and 44,691.48

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Solution

The fourth proportional to 71,052.12, 106,578.18 and 44,691.48 is: 67,037.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,052.12 : 106,578.18 = 44,691.48 : x
  2. Step 2: Convert to fraction form
    71,052.12/106,578.18 = 44,691.48/x
  3. Step 3: Cross multiply
    71,052.12x = 106,578.18 × 44,691.48
  4. Step 4: Simplify right side
    71,052.12x = 4,763,136,599.91
  5. Step 5: Solve for x
    x = 4,763,136,599.91/71,052.12
  6. Step 6: Final answer
    x = 67,037.22

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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.