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Finding the Third Proportional to 68,829 and 105,217.50

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Solution

The third proportional to 68,829 and 105,217.50 is: 160,843.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,829 : 105,217.50 = 105,217.50 : x
  2. Step 2: Convert to fraction form
    68,829/105,217.50 = 105,217.50/x
  3. Step 3: Cross multiply
    68,829x = 105,217.50 × 105,217.50
  4. Step 4: Simplify right side
    68,829x = 11,070,722,306.25
  5. Step 5: Solve for x
    x = 11,070,722,306.25/68,829
  6. Step 6: Final answer
    x = 160,843.86

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Why These Related Problems?

These problems maintain the same ratio (1.53) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.