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Finding the Third Proportional to 90,785,610 and 197,003,340

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Solution

The third proportional to 90,785,610 and 197,003,340 is: 427,494,136.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,785,610 : 197,003,340 = 197,003,340 : x
  2. Step 2: Convert to fraction form
    90,785,610/197,003,340 = 197,003,340/x
  3. Step 3: Cross multiply
    90,785,610x = 197,003,340 × 197,003,340
  4. Step 4: Simplify right side
    90,785,610x = 38,810,315,971,155,600
  5. Step 5: Solve for x
    x = 38,810,315,971,155,600/90,785,610
  6. Step 6: Final answer
    x = 427,494,136.69

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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.