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Finding the Third Proportional to 87,455,715 and 191,386,170

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Solution

The third proportional to 87,455,715 and 191,386,170 is: 418,825,299.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,455,715 : 191,386,170 = 191,386,170 : x
  2. Step 2: Convert to fraction form
    87,455,715/191,386,170 = 191,386,170/x
  3. Step 3: Cross multiply
    87,455,715x = 191,386,170 × 191,386,170
  4. Step 4: Simplify right side
    87,455,715x = 36,628,666,067,268,896
  5. Step 5: Solve for x
    x = 36,628,666,067,268,896/87,455,715
  6. Step 6: Final answer
    x = 418,825,299.95

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Why These Related Problems?

These problems maintain the same ratio (2.19) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.