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Finding the Third Proportional to 55,876 and 120,500

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Solution

The third proportional to 55,876 and 120,500 is: 259,865.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,876 : 120,500 = 120,500 : x
  2. Step 2: Convert to fraction form
    55,876/120,500 = 120,500/x
  3. Step 3: Cross multiply
    55,876x = 120,500 × 120,500
  4. Step 4: Simplify right side
    55,876x = 14,520,250,000
  5. Step 5: Solve for x
    x = 14,520,250,000/55,876
  6. Step 6: Final answer
    x = 259,865.60

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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.