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Finding the Third Proportional to 167,128 and 255,988

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Solution

The third proportional to 167,128 and 255,988 is: 392,093.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    167,128 : 255,988 = 255,988 : x
  2. Step 2: Convert to fraction form
    167,128/255,988 = 255,988/x
  3. Step 3: Cross multiply
    167,128x = 255,988 × 255,988
  4. Step 4: Simplify right side
    167,128x = 65,529,856,144
  5. Step 5: Solve for x
    x = 65,529,856,144/167,128
  6. Step 6: Final answer
    x = 392,093.82

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Why These Related Problems?

These problems maintain the same ratio (1.53) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.