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Finding the Fourth Proportional to 83,606.62, 115,369.50 and 49,609.26

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Solution

The fourth proportional to 83,606.62, 115,369.50 and 49,609.26 is: 68,456.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,606.62 : 115,369.50 = 49,609.26 : x
  2. Step 2: Convert to fraction form
    83,606.62/115,369.50 = 49,609.26/x
  3. Step 3: Cross multiply
    83,606.62x = 115,369.50 × 49,609.26
  4. Step 4: Simplify right side
    83,606.62x = 5,723,394,944.72
  5. Step 5: Solve for x
    x = 5,723,394,944.72/83,606.62
  6. Step 6: Final answer
    x = 68,456.24

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.