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Finding the Fourth Proportional to 71,316.60, 106,974.90 and 44,935.80

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Solution

The fourth proportional to 71,316.60, 106,974.90 and 44,935.80 is: 67,403.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,316.60 : 106,974.90 = 44,935.80 : x
  2. Step 2: Convert to fraction form
    71,316.60/106,974.90 = 44,935.80/x
  3. Step 3: Cross multiply
    71,316.60x = 106,974.90 × 44,935.80
  4. Step 4: Simplify right side
    71,316.60x = 4,807,002,711.42
  5. Step 5: Solve for x
    x = 4,807,002,711.42/71,316.60
  6. Step 6: Final answer
    x = 67,403.70

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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.