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Finding the Third Proportional to 87,253,740 and 135,289,926

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Solution

The third proportional to 87,253,740 and 135,289,926 is: 209,771,685.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,253,740 : 135,289,926 = 135,289,926 : x
  2. Step 2: Convert to fraction form
    87,253,740/135,289,926 = 135,289,926/x
  3. Step 3: Cross multiply
    87,253,740x = 135,289,926 × 135,289,926
  4. Step 4: Simplify right side
    87,253,740x = 18,303,364,077,085,476
  5. Step 5: Solve for x
    x = 18,303,364,077,085,476/87,253,740
  6. Step 6: Final answer
    x = 209,771,685.17

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Why These Related Problems?

These problems maintain the same ratio (1.55) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.