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Finding the Third Proportional to 108,770 and 159,561

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Solution

The third proportional to 108,770 and 159,561 is: 234,069.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,770 : 159,561 = 159,561 : x
  2. Step 2: Convert to fraction form
    108,770/159,561 = 159,561/x
  3. Step 3: Cross multiply
    108,770x = 159,561 × 159,561
  4. Step 4: Simplify right side
    108,770x = 25,459,712,721
  5. Step 5: Solve for x
    x = 25,459,712,721/108,770
  6. Step 6: Final answer
    x = 234,069.25

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Why These Related Problems?

These problems maintain the same ratio (1.47) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.