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Finding the Third Proportional to 90,883.50 and 193,431

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Solution

The third proportional to 90,883.50 and 193,431 is: 411,686.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,883.50 : 193,431 = 193,431 : x
  2. Step 2: Convert to fraction form
    90,883.50/193,431 = 193,431/x
  3. Step 3: Cross multiply
    90,883.50x = 193,431 × 193,431
  4. Step 4: Simplify right side
    90,883.50x = 37,415,551,761
  5. Step 5: Solve for x
    x = 37,415,551,761/90,883.50
  6. Step 6: Final answer
    x = 411,686.96

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Why These Related Problems?

These problems maintain the same ratio (2.13) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.