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Finding the Third Proportional to 129,432 and 195,336

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Solution

The third proportional to 129,432 and 195,336 is: 294,796.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,432 : 195,336 = 195,336 : x
  2. Step 2: Convert to fraction form
    129,432/195,336 = 195,336/x
  3. Step 3: Cross multiply
    129,432x = 195,336 × 195,336
  4. Step 4: Simplify right side
    129,432x = 38,156,152,896
  5. Step 5: Solve for x
    x = 38,156,152,896/129,432
  6. Step 6: Final answer
    x = 294,796.90

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.