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Finding the Third Proportional to 76,621,204 and 170,248,521

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Solution

The third proportional to 76,621,204 and 170,248,521 is: 378,283,782.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,621,204 : 170,248,521 = 170,248,521 : x
  2. Step 2: Convert to fraction form
    76,621,204/170,248,521 = 170,248,521/x
  3. Step 3: Cross multiply
    76,621,204x = 170,248,521 × 170,248,521
  4. Step 4: Simplify right side
    76,621,204x = 28,984,558,902,687,440
  5. Step 5: Solve for x
    x = 28,984,558,902,687,440/76,621,204
  6. Step 6: Final answer
    x = 378,283,782.94

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Why These Related Problems?

These problems maintain the same ratio (2.22) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.