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Finding the Third Proportional to 91,808,772 and 193,979,853

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Solution

The third proportional to 91,808,772 and 193,979,853 is: 409,853,901.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,808,772 : 193,979,853 = 193,979,853 : x
  2. Step 2: Convert to fraction form
    91,808,772/193,979,853 = 193,979,853/x
  3. Step 3: Cross multiply
    91,808,772x = 193,979,853 × 193,979,853
  4. Step 4: Simplify right side
    91,808,772x = 37,628,183,369,901,608
  5. Step 5: Solve for x
    x = 37,628,183,369,901,608/91,808,772
  6. Step 6: Final answer
    x = 409,853,901.21

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Why These Related Problems?

These problems maintain the same ratio (2.11) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.