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Finding the Fourth Proportional to 220,552.80, 330,829.20 and 158,344.80

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Solution

The fourth proportional to 220,552.80, 330,829.20 and 158,344.80 is: 237,517.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,552.80 : 330,829.20 = 158,344.80 : x
  2. Step 2: Convert to fraction form
    220,552.80/330,829.20 = 158,344.80/x
  3. Step 3: Cross multiply
    220,552.80x = 330,829.20 × 158,344.80
  4. Step 4: Simplify right side
    220,552.80x = 52,385,083,508.16
  5. Step 5: Solve for x
    x = 52,385,083,508.16/220,552.80
  6. Step 6: Final answer
    x = 237,517.20

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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.