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Finding the Third Proportional to 75,745 and 164,791

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Solution

The third proportional to 75,745 and 164,791 is: 358,519.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,745 : 164,791 = 164,791 : x
  2. Step 2: Convert to fraction form
    75,745/164,791 = 164,791/x
  3. Step 3: Cross multiply
    75,745x = 164,791 × 164,791
  4. Step 4: Simplify right side
    75,745x = 27,156,073,681
  5. Step 5: Solve for x
    x = 27,156,073,681/75,745
  6. Step 6: Final answer
    x = 358,519.69

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Why These Related Problems?

These problems maintain the same ratio (2.18) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.