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Finding the Fourth Proportional to 69,449.78, 95,856.42 and 39,252.62

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Solution

The fourth proportional to 69,449.78, 95,856.42 and 39,252.62 is: 54,177.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,449.78 : 95,856.42 = 39,252.62 : x
  2. Step 2: Convert to fraction form
    69,449.78/95,856.42 = 39,252.62/x
  3. Step 3: Cross multiply
    69,449.78x = 95,856.42 × 39,252.62
  4. Step 4: Simplify right side
    69,449.78x = 3,762,615,628.82
  5. Step 5: Solve for x
    x = 3,762,615,628.82/69,449.78
  6. Step 6: Final answer
    x = 54,177.50

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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.