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Finding the Fourth Proportional to 73,012.92, 100,757.22 and 42,388.85

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Solution

The fourth proportional to 73,012.92, 100,757.22 and 42,388.85 is: 58,496.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,012.92 : 100,757.22 = 42,388.85 : x
  2. Step 2: Convert to fraction form
    73,012.92/100,757.22 = 42,388.85/x
  3. Step 3: Cross multiply
    73,012.92x = 100,757.22 × 42,388.85
  4. Step 4: Simplify right side
    73,012.92x = 4,270,982,685.00
  5. Step 5: Solve for x
    x = 4,270,982,685.00/73,012.92
  6. Step 6: Final answer
    x = 58,496.26

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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.