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Finding the Third Proportional to 113,790 and 163,910

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Solution

The third proportional to 113,790 and 163,910 is: 236,105.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,790 : 163,910 = 163,910 : x
  2. Step 2: Convert to fraction form
    113,790/163,910 = 163,910/x
  3. Step 3: Cross multiply
    113,790x = 163,910 × 163,910
  4. Step 4: Simplify right side
    113,790x = 26,866,488,100
  5. Step 5: Solve for x
    x = 26,866,488,100/113,790
  6. Step 6: Final answer
    x = 236,105.88

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Why These Related Problems?

These problems maintain the same ratio (1.44) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.