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Finding the Third Proportional to 97,172 and 212,512

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Solution

The third proportional to 97,172 and 212,512 is: 464,756.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    97,172 : 212,512 = 212,512 : x
  2. Step 2: Convert to fraction form
    97,172/212,512 = 212,512/x
  3. Step 3: Cross multiply
    97,172x = 212,512 × 212,512
  4. Step 4: Simplify right side
    97,172x = 45,161,350,144
  5. Step 5: Solve for x
    x = 45,161,350,144/97,172
  6. Step 6: Final answer
    x = 464,756.82

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Why These Related Problems?

These problems maintain the same ratio (2.19) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.