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Finding the Third Proportional to 91,573,245.84 and 196,439,843.81

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Solution

The third proportional to 91,573,245.84 and 196,439,843.81 is: 421,396,139.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,573,245.84 : 196,439,843.81 = 196,439,843.81 : x
  2. Step 2: Convert to fraction form
    91,573,245.84/196,439,843.81 = 196,439,843.81/x
  3. Step 3: Cross multiply
    91,573,245.84x = 196,439,843.81 × 196,439,843.81
  4. Step 4: Simplify right side
    91,573,245.84x = 38,588,612,237,079,392
  5. Step 5: Solve for x
    x = 38,588,612,237,079,392/91,573,245.84
  6. Step 6: Final answer
    x = 421,396,139.03

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Why These Related Problems?

These problems maintain the same ratio (2.15) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.