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Finding the Fourth Proportional to 61,752.25, 85,278.66 and 52,747.28

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Solution

The fourth proportional to 61,752.25, 85,278.66 and 52,747.28 is: 72,842.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,752.25 : 85,278.66 = 52,747.28 : x
  2. Step 2: Convert to fraction form
    61,752.25/85,278.66 = 52,747.28/x
  3. Step 3: Cross multiply
    61,752.25x = 85,278.66 × 52,747.28
  4. Step 4: Simplify right side
    61,752.25x = 4,498,217,357.04
  5. Step 5: Solve for x
    x = 4,498,217,357.04/61,752.25
  6. Step 6: Final answer
    x = 72,842.97

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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.