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Finding the Fourth Proportional to 48,320.80, 72,481.20 and 41,408.80

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Solution

The fourth proportional to 48,320.80, 72,481.20 and 41,408.80 is: 62,113.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,320.80 : 72,481.20 = 41,408.80 : x
  2. Step 2: Convert to fraction form
    48,320.80/72,481.20 = 41,408.80/x
  3. Step 3: Cross multiply
    48,320.80x = 72,481.20 × 41,408.80
  4. Step 4: Simplify right side
    48,320.80x = 3,001,359,514.56
  5. Step 5: Solve for x
    x = 3,001,359,514.56/48,320.80
  6. Step 6: Final answer
    x = 62,113.20

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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.