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Finding the Third Proportional to 121,793 and 191,324

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Solution

The third proportional to 121,793 and 191,324 is: 300,549.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,793 : 191,324 = 191,324 : x
  2. Step 2: Convert to fraction form
    121,793/191,324 = 191,324/x
  3. Step 3: Cross multiply
    121,793x = 191,324 × 191,324
  4. Step 4: Simplify right side
    121,793x = 36,604,872,976
  5. Step 5: Solve for x
    x = 36,604,872,976/121,793
  6. Step 6: Final answer
    x = 300,549.89

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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.