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Finding the Fourth Proportional to 394,540.80, 592,054.20 and 170,008.80

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Solution

The fourth proportional to 394,540.80, 592,054.20 and 170,008.80 is: 255,117.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    394,540.80 : 592,054.20 = 170,008.80 : x
  2. Step 2: Convert to fraction form
    394,540.80/592,054.20 = 170,008.80/x
  3. Step 3: Cross multiply
    394,540.80x = 592,054.20 × 170,008.80
  4. Step 4: Simplify right side
    394,540.80x = 100,654,424,076.96
  5. Step 5: Solve for x
    x = 100,654,424,076.96/394,540.80
  6. Step 6: Final answer
    x = 255,117.91

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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.