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Finding the Fourth Proportional to 67,948.80, 101,728.80 and 52,267.20

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Solution

The fourth proportional to 67,948.80, 101,728.80 and 52,267.20 is: 78,251.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,948.80 : 101,728.80 = 52,267.20 : x
  2. Step 2: Convert to fraction form
    67,948.80/101,728.80 = 52,267.20/x
  3. Step 3: Cross multiply
    67,948.80x = 101,728.80 × 52,267.20
  4. Step 4: Simplify right side
    67,948.80x = 5,317,079,535.36
  5. Step 5: Solve for x
    x = 5,317,079,535.36/67,948.80
  6. Step 6: Final answer
    x = 78,251.26

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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.