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Finding the Third Proportional to 99 and 192.38

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Solution

The third proportional to 99 and 192.38 is: 373.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    99 : 192.38 = 192.38 : x
  2. Step 2: Convert to fraction form
    99/192.38 = 192.38/x
  3. Step 3: Cross multiply
    99x = 192.38 × 192.38
  4. Step 4: Simplify right side
    99x = 37,008.14
  5. Step 5: Solve for x
    x = 37,008.14/99
  6. Step 6: Final answer
    x = 373.82

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Why These Related Problems?

These problems maintain the same ratio (1.94) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.