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Finding the Third Proportional to 80,555,332 and 123,891,270

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Solution

The third proportional to 80,555,332 and 123,891,270 is: 190,540,419.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,555,332 : 123,891,270 = 123,891,270 : x
  2. Step 2: Convert to fraction form
    80,555,332/123,891,270 = 123,891,270/x
  3. Step 3: Cross multiply
    80,555,332x = 123,891,270 × 123,891,270
  4. Step 4: Simplify right side
    80,555,332x = 15,349,046,782,212,900
  5. Step 5: Solve for x
    x = 15,349,046,782,212,900/80,555,332
  6. Step 6: Final answer
    x = 190,540,419.87

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Why These Related Problems?

These problems maintain the same ratio (1.54) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.