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Finding the Third Proportional to 45,381.20 and 99,719.23

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Solution

The third proportional to 45,381.20 and 99,719.23 is: 219,119.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,381.20 : 99,719.23 = 99,719.23 : x
  2. Step 2: Convert to fraction form
    45,381.20/99,719.23 = 99,719.23/x
  3. Step 3: Cross multiply
    45,381.20x = 99,719.23 × 99,719.23
  4. Step 4: Simplify right side
    45,381.20x = 9,943,924,146.22
  5. Step 5: Solve for x
    x = 9,943,924,146.22/45,381.20
  6. Step 6: Final answer
    x = 219,119.91

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Why These Related Problems?

These problems maintain the same ratio (2.20) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.