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Finding the Third Proportional to 195,102 and 421,552

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Solution

The third proportional to 195,102 and 421,552 is: 910,836.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    195,102 : 421,552 = 421,552 : x
  2. Step 2: Convert to fraction form
    195,102/421,552 = 421,552/x
  3. Step 3: Cross multiply
    195,102x = 421,552 × 421,552
  4. Step 4: Simplify right side
    195,102x = 177,706,088,704
  5. Step 5: Solve for x
    x = 177,706,088,704/195,102
  6. Step 6: Final answer
    x = 910,836.84

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Why These Related Problems?

These problems maintain the same ratio (2.16) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.