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Finding the Third Proportional to 196,860.75 and 421,604.25

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Solution

The third proportional to 196,860.75 and 421,604.25 is: 902,923.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    196,860.75 : 421,604.25 = 421,604.25 : x
  2. Step 2: Convert to fraction form
    196,860.75/421,604.25 = 421,604.25/x
  3. Step 3: Cross multiply
    196,860.75x = 421,604.25 × 421,604.25
  4. Step 4: Simplify right side
    196,860.75x = 177,750,143,618.06
  5. Step 5: Solve for x
    x = 177,750,143,618.06/196,860.75
  6. Step 6: Final answer
    x = 902,923.23

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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.