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Finding the Third Proportional to 55,561 and 119,810

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Solution

The third proportional to 55,561 and 119,810 is: 258,354.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,561 : 119,810 = 119,810 : x
  2. Step 2: Convert to fraction form
    55,561/119,810 = 119,810/x
  3. Step 3: Cross multiply
    55,561x = 119,810 × 119,810
  4. Step 4: Simplify right side
    55,561x = 14,354,436,100
  5. Step 5: Solve for x
    x = 14,354,436,100/55,561
  6. Step 6: Final answer
    x = 258,354.53

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Why These Related Problems?

These problems maintain the same ratio (2.16) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.