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Finding the Fourth Proportional to 61,371.54, 84,693.60 and 36,221.04

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Solution

The fourth proportional to 61,371.54, 84,693.60 and 36,221.04 is: 49,985.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,371.54 : 84,693.60 = 36,221.04 : x
  2. Step 2: Convert to fraction form
    61,371.54/84,693.60 = 36,221.04/x
  3. Step 3: Cross multiply
    61,371.54x = 84,693.60 × 36,221.04
  4. Step 4: Simplify right side
    61,371.54x = 3,067,690,273.34
  5. Step 5: Solve for x
    x = 3,067,690,273.34/61,371.54
  6. Step 6: Final answer
    x = 49,985.55

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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.