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Finding the Third Proportional to 74,179.13 and 109,881.56

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Solution

The third proportional to 74,179.13 and 109,881.56 is: 162,767.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,179.13 : 109,881.56 = 109,881.56 : x
  2. Step 2: Convert to fraction form
    74,179.13/109,881.56 = 109,881.56/x
  3. Step 3: Cross multiply
    74,179.13x = 109,881.56 × 109,881.56
  4. Step 4: Simplify right side
    74,179.13x = 12,073,957,777.44
  5. Step 5: Solve for x
    x = 12,073,957,777.44/74,179.13
  6. Step 6: Final answer
    x = 162,767.60

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Why These Related Problems?

These problems maintain the same ratio (1.48) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.