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Finding the Fourth Proportional to 394,542.80, 592,057.20 and 170,010.80

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Solution

The fourth proportional to 394,542.80, 592,057.20 and 170,010.80 is: 255,120.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    394,542.80 : 592,057.20 = 170,010.80 : x
  2. Step 2: Convert to fraction form
    394,542.80/592,057.20 = 170,010.80/x
  3. Step 3: Cross multiply
    394,542.80x = 592,057.20 × 170,010.80
  4. Step 4: Simplify right side
    394,542.80x = 100,656,118,217.76
  5. Step 5: Solve for x
    x = 100,656,118,217.76/394,542.80
  6. Step 6: Final answer
    x = 255,120.91

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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.