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Finding the Fourth Proportional to 68,410.60, 102,443.10 and 44,909.80

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Solution

The fourth proportional to 68,410.60, 102,443.10 and 44,909.80 is: 67,251.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,410.60 : 102,443.10 = 44,909.80 : x
  2. Step 2: Convert to fraction form
    68,410.60/102,443.10 = 44,909.80/x
  3. Step 3: Cross multiply
    68,410.60x = 102,443.10 × 44,909.80
  4. Step 4: Simplify right side
    68,410.60x = 4,600,699,132.38
  5. Step 5: Solve for x
    x = 4,600,699,132.38/68,410.60
  6. Step 6: Final answer
    x = 67,251.26

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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.