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Finding the Fourth Proportional to 69,451.56, 95,837.46 and 39,239.50

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Solution

The fourth proportional to 69,451.56, 95,837.46 and 39,239.50 is: 54,147.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,451.56 : 95,837.46 = 39,239.50 : x
  2. Step 2: Convert to fraction form
    69,451.56/95,837.46 = 39,239.50/x
  3. Step 3: Cross multiply
    69,451.56x = 95,837.46 × 39,239.50
  4. Step 4: Simplify right side
    69,451.56x = 3,760,614,011.67
  5. Step 5: Solve for x
    x = 3,760,614,011.67/69,451.56
  6. Step 6: Final answer
    x = 54,147.29

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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.