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Finding the Third Proportional to 196,512.75 and 421,041

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Solution

The third proportional to 196,512.75 and 421,041 is: 902,106.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    196,512.75 : 421,041 = 421,041 : x
  2. Step 2: Convert to fraction form
    196,512.75/421,041 = 421,041/x
  3. Step 3: Cross multiply
    196,512.75x = 421,041 × 421,041
  4. Step 4: Simplify right side
    196,512.75x = 177,275,523,681
  5. Step 5: Solve for x
    x = 177,275,523,681/196,512.75
  6. Step 6: Final answer
    x = 902,106.98

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Why These Related Problems?

These problems maintain the same ratio (2.14) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.