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Finding the Fourth Proportional to 516,843.99, 775,204.43 and 137,793.15

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Solution

The fourth proportional to 516,843.99, 775,204.43 and 137,793.15 is: 206,673.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    516,843.99 : 775,204.43 = 137,793.15 : x
  2. Step 2: Convert to fraction form
    516,843.99/775,204.43 = 137,793.15/x
  3. Step 3: Cross multiply
    516,843.99x = 775,204.43 × 137,793.15
  4. Step 4: Simplify right side
    516,843.99x = 106,817,859,614.69
  5. Step 5: Solve for x
    x = 106,817,859,614.69/516,843.99
  6. Step 6: Final answer
    x = 206,673.31

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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.