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Finding the Third Proportional to 131,364 and 203,823

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Solution

The third proportional to 131,364 and 203,823 is: 316,249.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,364 : 203,823 = 203,823 : x
  2. Step 2: Convert to fraction form
    131,364/203,823 = 203,823/x
  3. Step 3: Cross multiply
    131,364x = 203,823 × 203,823
  4. Step 4: Simplify right side
    131,364x = 41,543,815,329
  5. Step 5: Solve for x
    x = 41,543,815,329/131,364
  6. Step 6: Final answer
    x = 316,249.62

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Why These Related Problems?

These problems maintain the same ratio (1.55) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.