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Finding the Fourth Proportional to 61,791.64, 85,241.02 and 39,092.36

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Solution

The fourth proportional to 61,791.64, 85,241.02 and 39,092.36 is: 53,927.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,791.64 : 85,241.02 = 39,092.36 : x
  2. Step 2: Convert to fraction form
    61,791.64/85,241.02 = 39,092.36/x
  3. Step 3: Cross multiply
    61,791.64x = 85,241.02 × 39,092.36
  4. Step 4: Simplify right side
    61,791.64x = 3,332,272,640.61
  5. Step 5: Solve for x
    x = 3,332,272,640.61/61,791.64
  6. Step 6: Final answer
    x = 53,927.56

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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.