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Finding the Fourth Proportional to 73,182.44, 100,991.87 and 39,648.44

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Solution

The fourth proportional to 73,182.44, 100,991.87 and 39,648.44 is: 54,714.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,182.44 : 100,991.87 = 39,648.44 : x
  2. Step 2: Convert to fraction form
    73,182.44/100,991.87 = 39,648.44/x
  3. Step 3: Cross multiply
    73,182.44x = 100,991.87 × 39,648.44
  4. Step 4: Simplify right side
    73,182.44x = 4,004,170,098.18
  5. Step 5: Solve for x
    x = 4,004,170,098.18/73,182.44
  6. Step 6: Final answer
    x = 54,714.90

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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.