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Finding the Fourth Proportional to 60,496.20, 90,744.30 and 54,153.90

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Solution

The fourth proportional to 60,496.20, 90,744.30 and 54,153.90 is: 81,230.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,496.20 : 90,744.30 = 54,153.90 : x
  2. Step 2: Convert to fraction form
    60,496.20/90,744.30 = 54,153.90/x
  3. Step 3: Cross multiply
    60,496.20x = 90,744.30 × 54,153.90
  4. Step 4: Simplify right side
    60,496.20x = 4,914,157,747.77
  5. Step 5: Solve for x
    x = 4,914,157,747.77/60,496.20
  6. Step 6: Final answer
    x = 81,230.85

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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.