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Finding the Third Proportional to 178.50 and 367.50

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Solution

The third proportional to 178.50 and 367.50 is: 756.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    178.50 : 367.50 = 367.50 : x
  2. Step 2: Convert to fraction form
    178.50/367.50 = 367.50/x
  3. Step 3: Cross multiply
    178.50x = 367.50 × 367.50
  4. Step 4: Simplify right side
    178.50x = 135,056.25
  5. Step 5: Solve for x
    x = 135,056.25/178.50
  6. Step 6: Final answer
    x = 756.62

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Why These Related Problems?

These problems maintain the same ratio (2.06) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.