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Finding the Third Proportional to 210,626 and 273,243

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Solution

The third proportional to 210,626 and 273,243 is: 354,475.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,626 : 273,243 = 273,243 : x
  2. Step 2: Convert to fraction form
    210,626/273,243 = 273,243/x
  3. Step 3: Cross multiply
    210,626x = 273,243 × 273,243
  4. Step 4: Simplify right side
    210,626x = 74,661,737,049
  5. Step 5: Solve for x
    x = 74,661,737,049/210,626
  6. Step 6: Final answer
    x = 354,475.41

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Why These Related Problems?

These problems maintain the same ratio (1.30) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.