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Finding the Fourth Proportional to 69,469.09, 95,871.08 and 39,255.69

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Solution

The fourth proportional to 69,469.09, 95,871.08 and 39,255.69 is: 54,174.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,469.09 : 95,871.08 = 39,255.69 : x
  2. Step 2: Convert to fraction form
    69,469.09/95,871.08 = 39,255.69/x
  3. Step 3: Cross multiply
    69,469.09x = 95,871.08 × 39,255.69
  4. Step 4: Simplify right side
    69,469.09x = 3,763,485,396.45
  5. Step 5: Solve for x
    x = 3,763,485,396.45/69,469.09
  6. Step 6: Final answer
    x = 54,174.96

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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.