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Finding the Fourth Proportional to 415,508.25, 623,542.81 and 162,757.39

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Solution

The fourth proportional to 415,508.25, 623,542.81 and 162,757.39 is: 244,245.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    415,508.25 : 623,542.81 = 162,757.39 : x
  2. Step 2: Convert to fraction form
    415,508.25/623,542.81 = 162,757.39/x
  3. Step 3: Cross multiply
    415,508.25x = 623,542.81 × 162,757.39
  4. Step 4: Simplify right side
    415,508.25x = 101,486,197,191.15
  5. Step 5: Solve for x
    x = 101,486,197,191.15/415,508.25
  6. Step 6: Final answer
    x = 244,245.93

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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.