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Finding the Third Proportional to 66,914 and 100,149

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Solution

The third proportional to 66,914 and 100,149 is: 149,891.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,914 : 100,149 = 100,149 : x
  2. Step 2: Convert to fraction form
    66,914/100,149 = 100,149/x
  3. Step 3: Cross multiply
    66,914x = 100,149 × 100,149
  4. Step 4: Simplify right side
    66,914x = 10,029,822,201
  5. Step 5: Solve for x
    x = 10,029,822,201/66,914
  6. Step 6: Final answer
    x = 149,891.24

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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.