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Finding the Fourth Proportional to 68,327.20, 102,490.80 and 41,600.80

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Solution

The fourth proportional to 68,327.20, 102,490.80 and 41,600.80 is: 62,401.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,327.20 : 102,490.80 = 41,600.80 : x
  2. Step 2: Convert to fraction form
    68,327.20/102,490.80 = 41,600.80/x
  3. Step 3: Cross multiply
    68,327.20x = 102,490.80 × 41,600.80
  4. Step 4: Simplify right side
    68,327.20x = 4,263,699,272.64
  5. Step 5: Solve for x
    x = 4,263,699,272.64/68,327.20
  6. Step 6: Final answer
    x = 62,401.20

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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.