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Finding the Third Proportional to 106,153 and 165,689

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Solution

The third proportional to 106,153 and 165,689 is: 258,615.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    106,153 : 165,689 = 165,689 : x
  2. Step 2: Convert to fraction form
    106,153/165,689 = 165,689/x
  3. Step 3: Cross multiply
    106,153x = 165,689 × 165,689
  4. Step 4: Simplify right side
    106,153x = 27,452,844,721
  5. Step 5: Solve for x
    x = 27,452,844,721/106,153
  6. Step 6: Final answer
    x = 258,615.82

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Why These Related Problems?

These problems maintain the same ratio (1.56) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.