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Finding the Third Proportional to 90,568,159 and 198,928,692

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Solution

The third proportional to 90,568,159 and 198,928,692 is: 436,937,494.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,568,159 : 198,928,692 = 198,928,692 : x
  2. Step 2: Convert to fraction form
    90,568,159/198,928,692 = 198,928,692/x
  3. Step 3: Cross multiply
    90,568,159x = 198,928,692 × 198,928,692
  4. Step 4: Simplify right side
    90,568,159x = 39,572,624,500,830,864
  5. Step 5: Solve for x
    x = 39,572,624,500,830,864/90,568,159
  6. Step 6: Final answer
    x = 436,937,494.79

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Why These Related Problems?

These problems maintain the same ratio (2.20) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.