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Finding the Third Proportional to 107,966 and 168,987

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Solution

The third proportional to 107,966 and 168,987 is: 264,496.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,966 : 168,987 = 168,987 : x
  2. Step 2: Convert to fraction form
    107,966/168,987 = 168,987/x
  3. Step 3: Cross multiply
    107,966x = 168,987 × 168,987
  4. Step 4: Simplify right side
    107,966x = 28,556,606,169
  5. Step 5: Solve for x
    x = 28,556,606,169/107,966
  6. Step 6: Final answer
    x = 264,496.29

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Why These Related Problems?

These problems maintain the same ratio (1.57) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.