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Finding the Fourth Proportional to 68,216.62, 102,388.92 and 41,972.62

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Solution

The fourth proportional to 68,216.62, 102,388.92 and 41,972.62 is: 62,998.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,216.62 : 102,388.92 = 41,972.62 : x
  2. Step 2: Convert to fraction form
    68,216.62/102,388.92 = 41,972.62/x
  3. Step 3: Cross multiply
    68,216.62x = 102,388.92 × 41,972.62
  4. Step 4: Simplify right side
    68,216.62x = 4,297,531,231.37
  5. Step 5: Solve for x
    x = 4,297,531,231.37/68,216.62
  6. Step 6: Final answer
    x = 62,998.30

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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.