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Finding the Third Proportional to 194,251.50 and 421,713

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Solution

The third proportional to 194,251.50 and 421,713 is: 915,523.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    194,251.50 : 421,713 = 421,713 : x
  2. Step 2: Convert to fraction form
    194,251.50/421,713 = 421,713/x
  3. Step 3: Cross multiply
    194,251.50x = 421,713 × 421,713
  4. Step 4: Simplify right side
    194,251.50x = 177,841,854,369
  5. Step 5: Solve for x
    x = 177,841,854,369/194,251.50
  6. Step 6: Final answer
    x = 915,523.71

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Why These Related Problems?

These problems maintain the same ratio (2.17) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.