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Finding the Fourth Proportional to 68,022.80, 102,034.20 and 26,469.80

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Solution

The fourth proportional to 68,022.80, 102,034.20 and 26,469.80 is: 39,704.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,022.80 : 102,034.20 = 26,469.80 : x
  2. Step 2: Convert to fraction form
    68,022.80/102,034.20 = 26,469.80/x
  3. Step 3: Cross multiply
    68,022.80x = 102,034.20 × 26,469.80
  4. Step 4: Simplify right side
    68,022.80x = 2,700,824,867.16
  5. Step 5: Solve for x
    x = 2,700,824,867.16/68,022.80
  6. Step 6: Final answer
    x = 39,704.70

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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.