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Finding the Fourth Proportional to 68,288.60, 102,425.22 and 26,724.44

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Solution

The fourth proportional to 68,288.60, 102,425.22 and 26,724.44 is: 40,083.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,288.60 : 102,425.22 = 26,724.44 : x
  2. Step 2: Convert to fraction form
    68,288.60/102,425.22 = 26,724.44/x
  3. Step 3: Cross multiply
    68,288.60x = 102,425.22 × 26,724.44
  4. Step 4: Simplify right side
    68,288.60x = 2,737,256,646.38
  5. Step 5: Solve for x
    x = 2,737,256,646.38/68,288.60
  6. Step 6: Final answer
    x = 40,083.65

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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.