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Finding the Third Proportional to 79,666,371 and 171,439,650

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Solution

The third proportional to 79,666,371 and 171,439,650 is: 368,933,004.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,666,371 : 171,439,650 = 171,439,650 : x
  2. Step 2: Convert to fraction form
    79,666,371/171,439,650 = 171,439,650/x
  3. Step 3: Cross multiply
    79,666,371x = 171,439,650 × 171,439,650
  4. Step 4: Simplify right side
    79,666,371x = 29,391,553,592,122,500
  5. Step 5: Solve for x
    x = 29,391,553,592,122,500/79,666,371
  6. Step 6: Final answer
    x = 368,933,004.27

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Why These Related Problems?

These problems maintain the same ratio (2.15) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.