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Finding the Fourth Proportional to 69,149.25, 103,700.73 and 27,018.39

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Solution

The fourth proportional to 69,149.25, 103,700.73 and 27,018.39 is: 40,518.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,149.25 : 103,700.73 = 27,018.39 : x
  2. Step 2: Convert to fraction form
    69,149.25/103,700.73 = 27,018.39/x
  3. Step 3: Cross multiply
    69,149.25x = 103,700.73 × 27,018.39
  4. Step 4: Simplify right side
    69,149.25x = 2,801,826,766.42
  5. Step 5: Solve for x
    x = 2,801,826,766.42/69,149.25
  6. Step 6: Final answer
    x = 40,518.54

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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.