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Finding the Third Proportional to 79,246,884 and 172,562,420

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Solution

The third proportional to 79,246,884 and 172,562,420 is: 375,759,743.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,246,884 : 172,562,420 = 172,562,420 : x
  2. Step 2: Convert to fraction form
    79,246,884/172,562,420 = 172,562,420/x
  3. Step 3: Cross multiply
    79,246,884x = 172,562,420 × 172,562,420
  4. Step 4: Simplify right side
    79,246,884x = 29,777,788,796,256,400
  5. Step 5: Solve for x
    x = 29,777,788,796,256,400/79,246,884
  6. Step 6: Final answer
    x = 375,759,743.39

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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.