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Finding the Fourth Proportional to 69,502.80, 104,255.16 and 49,947.60

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Solution

The fourth proportional to 69,502.80, 104,255.16 and 49,947.60 is: 74,922.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,502.80 : 104,255.16 = 49,947.60 : x
  2. Step 2: Convert to fraction form
    69,502.80/104,255.16 = 49,947.60/x
  3. Step 3: Cross multiply
    69,502.80x = 104,255.16 × 49,947.60
  4. Step 4: Simplify right side
    69,502.80x = 5,207,295,029.62
  5. Step 5: Solve for x
    x = 5,207,295,029.62/69,502.80
  6. Step 6: Final answer
    x = 74,922.09

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.