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Finding the Third Proportional to 158.75 and 365.75

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Solution

The third proportional to 158.75 and 365.75 is: 842.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    158.75 : 365.75 = 365.75 : x
  2. Step 2: Convert to fraction form
    158.75/365.75 = 365.75/x
  3. Step 3: Cross multiply
    158.75x = 365.75 × 365.75
  4. Step 4: Simplify right side
    158.75x = 133,773.06
  5. Step 5: Solve for x
    x = 133,773.06/158.75
  6. Step 6: Final answer
    x = 842.66

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Why These Related Problems?

These problems maintain the same ratio (2.30) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.