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Finding the Fourth Proportional to 69,149.74, 103,701.49 and 27,018.89

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Solution

The fourth proportional to 69,149.74, 103,701.49 and 27,018.89 is: 40,519.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,149.74 : 103,701.49 = 27,018.89 : x
  2. Step 2: Convert to fraction form
    69,149.74/103,701.49 = 27,018.89/x
  3. Step 3: Cross multiply
    69,149.74x = 103,701.49 × 27,018.89
  4. Step 4: Simplify right side
    69,149.74x = 2,801,899,151.15
  5. Step 5: Solve for x
    x = 2,801,899,151.15/69,149.74
  6. Step 6: Final answer
    x = 40,519.30

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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.