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Finding the Fourth Proportional to 67,468.80, 101,203.20 and 39,475.20

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Solution

The fourth proportional to 67,468.80, 101,203.20 and 39,475.20 is: 59,212.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,468.80 : 101,203.20 = 39,475.20 : x
  2. Step 2: Convert to fraction form
    67,468.80/101,203.20 = 39,475.20/x
  3. Step 3: Cross multiply
    67,468.80x = 101,203.20 × 39,475.20
  4. Step 4: Simplify right side
    67,468.80x = 3,995,016,560.64
  5. Step 5: Solve for x
    x = 3,995,016,560.64/67,468.80
  6. Step 6: Final answer
    x = 59,212.80

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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.