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Finding the Third Proportional to 45,880 and 100,400

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Solution

The third proportional to 45,880 and 100,400 is: 219,707.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,880 : 100,400 = 100,400 : x
  2. Step 2: Convert to fraction form
    45,880/100,400 = 100,400/x
  3. Step 3: Cross multiply
    45,880x = 100,400 × 100,400
  4. Step 4: Simplify right side
    45,880x = 10,080,160,000
  5. Step 5: Solve for x
    x = 10,080,160,000/45,880
  6. Step 6: Final answer
    x = 219,707.06

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Why These Related Problems?

These problems maintain the same ratio (2.19) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.