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Finding the Third Proportional to 68,396.25 and 102,321

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Solution

The third proportional to 68,396.25 and 102,321 is: 153,072.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,396.25 : 102,321 = 102,321 : x
  2. Step 2: Convert to fraction form
    68,396.25/102,321 = 102,321/x
  3. Step 3: Cross multiply
    68,396.25x = 102,321 × 102,321
  4. Step 4: Simplify right side
    68,396.25x = 10,469,587,041
  5. Step 5: Solve for x
    x = 10,469,587,041/68,396.25
  6. Step 6: Final answer
    x = 153,072.53

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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.