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Finding the Third Proportional to 91,116 and 192,132

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Solution

The third proportional to 91,116 and 192,132 is: 405,139.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,116 : 192,132 = 192,132 : x
  2. Step 2: Convert to fraction form
    91,116/192,132 = 192,132/x
  3. Step 3: Cross multiply
    91,116x = 192,132 × 192,132
  4. Step 4: Simplify right side
    91,116x = 36,914,705,424
  5. Step 5: Solve for x
    x = 36,914,705,424/91,116
  6. Step 6: Final answer
    x = 405,139.66

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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.