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Finding the Third Proportional to 90,134,208 and 194,636,544

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Solution

The third proportional to 90,134,208 and 194,636,544 is: 420,299,740.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,134,208 : 194,636,544 = 194,636,544 : x
  2. Step 2: Convert to fraction form
    90,134,208/194,636,544 = 194,636,544/x
  3. Step 3: Cross multiply
    90,134,208x = 194,636,544 × 194,636,544
  4. Step 4: Simplify right side
    90,134,208x = 37,883,384,260,263,936
  5. Step 5: Solve for x
    x = 37,883,384,260,263,936/90,134,208
  6. Step 6: Final answer
    x = 420,299,740.81

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Why These Related Problems?

These problems maintain the same ratio (2.16) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.