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Finding the Third Proportional to 133,792 and 178,455

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Solution

The third proportional to 133,792 and 178,455 is: 238,027.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,792 : 178,455 = 178,455 : x
  2. Step 2: Convert to fraction form
    133,792/178,455 = 178,455/x
  3. Step 3: Cross multiply
    133,792x = 178,455 × 178,455
  4. Step 4: Simplify right side
    133,792x = 31,846,187,025
  5. Step 5: Solve for x
    x = 31,846,187,025/133,792
  6. Step 6: Final answer
    x = 238,027.59

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Why These Related Problems?

These problems maintain the same ratio (1.33) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.