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Finding the Fourth Proportional to 356,829.80, 534,791.10 and 146,229.80

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Solution

The fourth proportional to 356,829.80, 534,791.10 and 146,229.80 is: 219,158.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    356,829.80 : 534,791.10 = 146,229.80 : x
  2. Step 2: Convert to fraction form
    356,829.80/534,791.10 = 146,229.80/x
  3. Step 3: Cross multiply
    356,829.80x = 534,791.10 × 146,229.80
  4. Step 4: Simplify right side
    356,829.80x = 78,202,395,594.78
  5. Step 5: Solve for x
    x = 78,202,395,594.78/356,829.80
  6. Step 6: Final answer
    x = 219,158.81

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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.