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Finding the Third Proportional to 112,691 and 168,683

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Solution

The third proportional to 112,691 and 168,683 is: 252,495.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,691 : 168,683 = 168,683 : x
  2. Step 2: Convert to fraction form
    112,691/168,683 = 168,683/x
  3. Step 3: Cross multiply
    112,691x = 168,683 × 168,683
  4. Step 4: Simplify right side
    112,691x = 28,453,954,489
  5. Step 5: Solve for x
    x = 28,453,954,489/112,691
  6. Step 6: Final answer
    x = 252,495.36

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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.