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Finding the Third Proportional to 55,691 and 120,616

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Solution

The third proportional to 55,691 and 120,616 is: 261,231.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,691 : 120,616 = 120,616 : x
  2. Step 2: Convert to fraction form
    55,691/120,616 = 120,616/x
  3. Step 3: Cross multiply
    55,691x = 120,616 × 120,616
  4. Step 4: Simplify right side
    55,691x = 14,548,219,456
  5. Step 5: Solve for x
    x = 14,548,219,456/55,691
  6. Step 6: Final answer
    x = 261,231.07

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Why These Related Problems?

These problems maintain the same ratio (2.17) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.