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Finding the Third Proportional to 109,756 and 163,912

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Solution

The third proportional to 109,756 and 163,912 is: 244,789.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,756 : 163,912 = 163,912 : x
  2. Step 2: Convert to fraction form
    109,756/163,912 = 163,912/x
  3. Step 3: Cross multiply
    109,756x = 163,912 × 163,912
  4. Step 4: Simplify right side
    109,756x = 26,867,143,744
  5. Step 5: Solve for x
    x = 26,867,143,744/109,756
  6. Step 6: Final answer
    x = 244,789.75

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.