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Finding the Fourth Proportional to 68,874.60, 103,271.76 and 26,705.42

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Solution

The fourth proportional to 68,874.60, 103,271.76 and 26,705.42 is: 40,042.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,874.60 : 103,271.76 = 26,705.42 : x
  2. Step 2: Convert to fraction form
    68,874.60/103,271.76 = 26,705.42/x
  3. Step 3: Cross multiply
    68,874.60x = 103,271.76 × 26,705.42
  4. Step 4: Simplify right side
    68,874.60x = 2,757,915,724.94
  5. Step 5: Solve for x
    x = 2,757,915,724.94/68,874.60
  6. Step 6: Final answer
    x = 40,042.57

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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.