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Finding the Fourth Proportional to 68,212.62, 102,382.92 and 41,968.62

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Solution

The fourth proportional to 68,212.62, 102,382.92 and 41,968.62 is: 62,992.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,212.62 : 102,382.92 = 41,968.62 : x
  2. Step 2: Convert to fraction form
    68,212.62/102,382.92 = 41,968.62/x
  3. Step 3: Cross multiply
    68,212.62x = 102,382.92 × 41,968.62
  4. Step 4: Simplify right side
    68,212.62x = 4,296,869,863.97
  5. Step 5: Solve for x
    x = 4,296,869,863.97/68,212.62
  6. Step 6: Final answer
    x = 62,992.30

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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.