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Finding the Third Proportional to 79,731 and 167,724

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Solution

The third proportional to 79,731 and 167,724 is: 352,828.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,731 : 167,724 = 167,724 : x
  2. Step 2: Convert to fraction form
    79,731/167,724 = 167,724/x
  3. Step 3: Cross multiply
    79,731x = 167,724 × 167,724
  4. Step 4: Simplify right side
    79,731x = 28,131,340,176
  5. Step 5: Solve for x
    x = 28,131,340,176/79,731
  6. Step 6: Final answer
    x = 352,828.14

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Why These Related Problems?

These problems maintain the same ratio (2.10) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.