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Finding the Third Proportional to 80,579.81 and 124,372.13

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Solution

The third proportional to 80,579.81 and 124,372.13 is: 191,964.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,579.81 : 124,372.13 = 124,372.13 : x
  2. Step 2: Convert to fraction form
    80,579.81/124,372.13 = 124,372.13/x
  3. Step 3: Cross multiply
    80,579.81x = 124,372.13 × 124,372.13
  4. Step 4: Simplify right side
    80,579.81x = 15,468,425,477.02
  5. Step 5: Solve for x
    x = 15,468,425,477.02/80,579.81
  6. Step 6: Final answer
    x = 191,964.03

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Why These Related Problems?

These problems maintain the same ratio (1.54) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.