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Finding the Third Proportional to 192.38 and 302.06

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Solution

The third proportional to 192.38 and 302.06 is: 474.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    192.38 : 302.06 = 302.06 : x
  2. Step 2: Convert to fraction form
    192.38/302.06 = 302.06/x
  3. Step 3: Cross multiply
    192.38x = 302.06 × 302.06
  4. Step 4: Simplify right side
    192.38x = 91,241.75
  5. Step 5: Solve for x
    x = 91,241.75/192.38
  6. Step 6: Final answer
    x = 474.29

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Why These Related Problems?

These problems maintain the same ratio (1.57) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.