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Finding the Third Proportional to 66,812 and 157,697

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Solution

The third proportional to 66,812 and 157,697 is: 372,213.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,812 : 157,697 = 157,697 : x
  2. Step 2: Convert to fraction form
    66,812/157,697 = 157,697/x
  3. Step 3: Cross multiply
    66,812x = 157,697 × 157,697
  4. Step 4: Simplify right side
    66,812x = 24,868,343,809
  5. Step 5: Solve for x
    x = 24,868,343,809/66,812
  6. Step 6: Final answer
    x = 372,213.73

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Why These Related Problems?

These problems maintain the same ratio (2.36) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.