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Finding the Third Proportional to 117,432 and 167,400

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Solution

The third proportional to 117,432 and 167,400 is: 238,629.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,432 : 167,400 = 167,400 : x
  2. Step 2: Convert to fraction form
    117,432/167,400 = 167,400/x
  3. Step 3: Cross multiply
    117,432x = 167,400 × 167,400
  4. Step 4: Simplify right side
    117,432x = 28,022,760,000
  5. Step 5: Solve for x
    x = 28,022,760,000/117,432
  6. Step 6: Final answer
    x = 238,629.68

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Why These Related Problems?

These problems maintain the same ratio (1.43) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.