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Finding the Third Proportional to 77,731 and 167,868

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Solution

The third proportional to 77,731 and 167,868 is: 362,528.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,731 : 167,868 = 167,868 : x
  2. Step 2: Convert to fraction form
    77,731/167,868 = 167,868/x
  3. Step 3: Cross multiply
    77,731x = 167,868 × 167,868
  4. Step 4: Simplify right side
    77,731x = 28,179,665,424
  5. Step 5: Solve for x
    x = 28,179,665,424/77,731
  6. Step 6: Final answer
    x = 362,528.02

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Why These Related Problems?

These problems maintain the same ratio (2.16) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.