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Finding the Fourth Proportional to 68,505.73, 102,772.97 and 29,061.97

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Solution

The fourth proportional to 68,505.73, 102,772.97 and 29,061.97 is: 43,599.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,505.73 : 102,772.97 = 29,061.97 : x
  2. Step 2: Convert to fraction form
    68,505.73/102,772.97 = 29,061.97/x
  3. Step 3: Cross multiply
    68,505.73x = 102,772.97 × 29,061.97
  4. Step 4: Simplify right side
    68,505.73x = 2,986,784,311.78
  5. Step 5: Solve for x
    x = 2,986,784,311.78/68,505.73
  6. Step 6: Final answer
    x = 43,599.05

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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.