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Finding the Third Proportional to 168,057 and 266,238

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Solution

The third proportional to 168,057 and 266,238 is: 421,777.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,057 : 266,238 = 266,238 : x
  2. Step 2: Convert to fraction form
    168,057/266,238 = 266,238/x
  3. Step 3: Cross multiply
    168,057x = 266,238 × 266,238
  4. Step 4: Simplify right side
    168,057x = 70,882,672,644
  5. Step 5: Solve for x
    x = 70,882,672,644/168,057
  6. Step 6: Final answer
    x = 421,777.57

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Why These Related Problems?

These problems maintain the same ratio (1.58) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.