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Finding the Fourth Proportional to 361,660.31, 542,379.69 and 250,057.70

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Solution

The fourth proportional to 361,660.31, 542,379.69 and 250,057.70 is: 375,009.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    361,660.31 : 542,379.69 = 250,057.70 : x
  2. Step 2: Convert to fraction form
    361,660.31/542,379.69 = 250,057.70/x
  3. Step 3: Cross multiply
    361,660.31x = 542,379.69 × 250,057.70
  4. Step 4: Simplify right side
    361,660.31x = 135,626,215,096.22
  5. Step 5: Solve for x
    x = 135,626,215,096.22/361,660.31
  6. Step 6: Final answer
    x = 375,009.96

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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.