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Finding the Fourth Proportional to 69,687.92, 96,170 and 37,857.44

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Solution

The fourth proportional to 69,687.92, 96,170 and 37,857.44 is: 52,243.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,687.92 : 96,170 = 37,857.44 : x
  2. Step 2: Convert to fraction form
    69,687.92/96,170 = 37,857.44/x
  3. Step 3: Cross multiply
    69,687.92x = 96,170 × 37,857.44
  4. Step 4: Simplify right side
    69,687.92x = 3,640,750,004.80
  5. Step 5: Solve for x
    x = 3,640,750,004.80/69,687.92
  6. Step 6: Final answer
    x = 52,243.63

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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.