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Finding the Third Proportional to 105,396 and 154,149

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Solution

The third proportional to 105,396 and 154,149 is: 225,453.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,396 : 154,149 = 154,149 : x
  2. Step 2: Convert to fraction form
    105,396/154,149 = 154,149/x
  3. Step 3: Cross multiply
    105,396x = 154,149 × 154,149
  4. Step 4: Simplify right side
    105,396x = 23,761,914,201
  5. Step 5: Solve for x
    x = 23,761,914,201/105,396
  6. Step 6: Final answer
    x = 225,453.66

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Why These Related Problems?

These problems maintain the same ratio (1.46) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.