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Finding the Third Proportional to 206,947,281 and 450,636,161

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Solution

The third proportional to 206,947,281 and 450,636,161 is: 981,278,655.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    206,947,281 : 450,636,161 = 450,636,161 : x
  2. Step 2: Convert to fraction form
    206,947,281/450,636,161 = 450,636,161/x
  3. Step 3: Cross multiply
    206,947,281x = 450,636,161 × 450,636,161
  4. Step 4: Simplify right side
    206,947,281x = 203,072,949,600,817,920
  5. Step 5: Solve for x
    x = 203,072,949,600,817,920/206,947,281
  6. Step 6: Final answer
    x = 981,278,655.22

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Why These Related Problems?

These problems maintain the same ratio (2.18) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.