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Finding the Fourth Proportional to 68,236.73, 102,355.09 and 26,654.57

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Solution

The fourth proportional to 68,236.73, 102,355.09 and 26,654.57 is: 39,981.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,236.73 : 102,355.09 = 26,654.57 : x
  2. Step 2: Convert to fraction form
    68,236.73/102,355.09 = 26,654.57/x
  3. Step 3: Cross multiply
    68,236.73x = 102,355.09 × 26,654.57
  4. Step 4: Simplify right side
    68,236.73x = 2,728,230,266.21
  5. Step 5: Solve for x
    x = 2,728,230,266.21/68,236.73
  6. Step 6: Final answer
    x = 39,981.85

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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.