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Finding the Fourth Proportional to 361,429.39, 542,140.17 and 148,149.76

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Solution

The fourth proportional to 361,429.39, 542,140.17 and 148,149.76 is: 222,223.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    361,429.39 : 542,140.17 = 148,149.76 : x
  2. Step 2: Convert to fraction form
    361,429.39/542,140.17 = 148,149.76/x
  3. Step 3: Cross multiply
    361,429.39x = 542,140.17 × 148,149.76
  4. Step 4: Simplify right side
    361,429.39x = 80,317,936,010.80
  5. Step 5: Solve for x
    x = 80,317,936,010.80/361,429.39
  6. Step 6: Final answer
    x = 222,223.03

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1.5x scale

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.