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Finding the Fourth Proportional to 61,958.25, 85,463.37 and 49,412.97

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Solution

The fourth proportional to 61,958.25, 85,463.37 and 49,412.97 is: 68,158.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,958.25 : 85,463.37 = 49,412.97 : x
  2. Step 2: Convert to fraction form
    61,958.25/85,463.37 = 49,412.97/x
  3. Step 3: Cross multiply
    61,958.25x = 85,463.37 × 49,412.97
  4. Step 4: Simplify right side
    61,958.25x = 4,222,998,937.91
  5. Step 5: Solve for x
    x = 4,222,998,937.91/61,958.25
  6. Step 6: Final answer
    x = 68,158.78

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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.