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Finding the Fourth Proportional to 68,614.20, 102,895.70 and 27,052.60

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Solution

The fourth proportional to 68,614.20, 102,895.70 and 27,052.60 is: 40,568.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,614.20 : 102,895.70 = 27,052.60 : x
  2. Step 2: Convert to fraction form
    68,614.20/102,895.70 = 27,052.60/x
  3. Step 3: Cross multiply
    68,614.20x = 102,895.70 × 27,052.60
  4. Step 4: Simplify right side
    68,614.20x = 2,783,596,213.82
  5. Step 5: Solve for x
    x = 2,783,596,213.82/68,614.20
  6. Step 6: Final answer
    x = 40,568.81

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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.