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Finding the Third Proportional to 85,680 and 191,232

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Solution

The third proportional to 85,680 and 191,232 is: 426,816.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,680 : 191,232 = 191,232 : x
  2. Step 2: Convert to fraction form
    85,680/191,232 = 191,232/x
  3. Step 3: Cross multiply
    85,680x = 191,232 × 191,232
  4. Step 4: Simplify right side
    85,680x = 36,569,677,824
  5. Step 5: Solve for x
    x = 36,569,677,824/85,680
  6. Step 6: Final answer
    x = 426,816.97

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Why These Related Problems?

These problems maintain the same ratio (2.23) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.