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Finding the Third Proportional to 70,432 and 166,312

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Solution

The third proportional to 70,432 and 166,312 is: 392,714.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,432 : 166,312 = 166,312 : x
  2. Step 2: Convert to fraction form
    70,432/166,312 = 166,312/x
  3. Step 3: Cross multiply
    70,432x = 166,312 × 166,312
  4. Step 4: Simplify right side
    70,432x = 27,659,681,344
  5. Step 5: Solve for x
    x = 27,659,681,344/70,432
  6. Step 6: Final answer
    x = 392,714.69

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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.