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Finding the Third Proportional to 40,179,971 and 87,209,626

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Solution

The third proportional to 40,179,971 and 87,209,626 is: 189,286,320.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,179,971 : 87,209,626 = 87,209,626 : x
  2. Step 2: Convert to fraction form
    40,179,971/87,209,626 = 87,209,626/x
  3. Step 3: Cross multiply
    40,179,971x = 87,209,626 × 87,209,626
  4. Step 4: Simplify right side
    40,179,971x = 7,605,518,867,059,876
  5. Step 5: Solve for x
    x = 7,605,518,867,059,876/40,179,971
  6. Step 6: Final answer
    x = 189,286,320.47

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Why These Related Problems?

These problems maintain the same ratio (2.17) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.