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Finding the Third Proportional to 75,328 and 162,330

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Solution

The third proportional to 75,328 and 162,330 is: 349,817.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,328 : 162,330 = 162,330 : x
  2. Step 2: Convert to fraction form
    75,328/162,330 = 162,330/x
  3. Step 3: Cross multiply
    75,328x = 162,330 × 162,330
  4. Step 4: Simplify right side
    75,328x = 26,351,028,900
  5. Step 5: Solve for x
    x = 26,351,028,900/75,328
  6. Step 6: Final answer
    x = 349,817.18

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Why These Related Problems?

These problems maintain the same ratio (2.15) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.