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Finding the Fourth Proportional to 67,744.80, 101,617.20 and 60,487.20

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Solution

The fourth proportional to 67,744.80, 101,617.20 and 60,487.20 is: 90,730.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,744.80 : 101,617.20 = 60,487.20 : x
  2. Step 2: Convert to fraction form
    67,744.80/101,617.20 = 60,487.20/x
  3. Step 3: Cross multiply
    67,744.80x = 101,617.20 × 60,487.20
  4. Step 4: Simplify right side
    67,744.80x = 6,146,539,899.84
  5. Step 5: Solve for x
    x = 6,146,539,899.84/67,744.80
  6. Step 6: Final answer
    x = 90,730.80

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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.