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Finding the Third Proportional to 178.88 and 329.06

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Solution

The third proportional to 178.88 and 329.06 is: 605.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    178.88 : 329.06 = 329.06 : x
  2. Step 2: Convert to fraction form
    178.88/329.06 = 329.06/x
  3. Step 3: Cross multiply
    178.88x = 329.06 × 329.06
  4. Step 4: Simplify right side
    178.88x = 108,282.13
  5. Step 5: Solve for x
    x = 108,282.13/178.88
  6. Step 6: Final answer
    x = 605.35

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Why These Related Problems?

These problems maintain the same ratio (1.84) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.