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Finding the Third Proportional to 122,946 and 189,876

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Solution

The third proportional to 122,946 and 189,876 is: 293,241.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,946 : 189,876 = 189,876 : x
  2. Step 2: Convert to fraction form
    122,946/189,876 = 189,876/x
  3. Step 3: Cross multiply
    122,946x = 189,876 × 189,876
  4. Step 4: Simplify right side
    122,946x = 36,052,895,376
  5. Step 5: Solve for x
    x = 36,052,895,376/122,946
  6. Step 6: Final answer
    x = 293,241.71

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Why These Related Problems?

These problems maintain the same ratio (1.54) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.