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Finding the Third Proportional to 133,778 and 195,868

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Solution

The third proportional to 133,778 and 195,868 is: 286,775.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,778 : 195,868 = 195,868 : x
  2. Step 2: Convert to fraction form
    133,778/195,868 = 195,868/x
  3. Step 3: Cross multiply
    133,778x = 195,868 × 195,868
  4. Step 4: Simplify right side
    133,778x = 38,364,273,424
  5. Step 5: Solve for x
    x = 38,364,273,424/133,778
  6. Step 6: Final answer
    x = 286,775.65

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Why These Related Problems?

These problems maintain the same ratio (1.46) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.