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Finding the Third Proportional to 106,672 and 165,210

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Solution

The third proportional to 106,672 and 165,210 is: 255,871.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    106,672 : 165,210 = 165,210 : x
  2. Step 2: Convert to fraction form
    106,672/165,210 = 165,210/x
  3. Step 3: Cross multiply
    106,672x = 165,210 × 165,210
  4. Step 4: Simplify right side
    106,672x = 27,294,344,100
  5. Step 5: Solve for x
    x = 27,294,344,100/106,672
  6. Step 6: Final answer
    x = 255,871.68

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Why These Related Problems?

These problems maintain the same ratio (1.55) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.