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Finding the Third Proportional to 163.75 and 346.25

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Solution

The third proportional to 163.75 and 346.25 is: 732.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    163.75 : 346.25 = 346.25 : x
  2. Step 2: Convert to fraction form
    163.75/346.25 = 346.25/x
  3. Step 3: Cross multiply
    163.75x = 346.25 × 346.25
  4. Step 4: Simplify right side
    163.75x = 119,889.06
  5. Step 5: Solve for x
    x = 119,889.06/163.75
  6. Step 6: Final answer
    x = 732.15

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Why These Related Problems?

These problems maintain the same ratio (2.11) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.