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Finding the Fourth Proportional to 69,241.52, 95,553.68 and 40,578.08

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Solution

The fourth proportional to 69,241.52, 95,553.68 and 40,578.08 is: 55,997.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,241.52 : 95,553.68 = 40,578.08 : x
  2. Step 2: Convert to fraction form
    69,241.52/95,553.68 = 40,578.08/x
  3. Step 3: Cross multiply
    69,241.52x = 95,553.68 × 40,578.08
  4. Step 4: Simplify right side
    69,241.52x = 3,877,384,871.33
  5. Step 5: Solve for x
    x = 3,877,384,871.33/69,241.52
  6. Step 6: Final answer
    x = 55,997.97

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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.