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Finding the Third Proportional to 75,311.50 and 160,631

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Solution

The third proportional to 75,311.50 and 160,631 is: 342,607.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,311.50 : 160,631 = 160,631 : x
  2. Step 2: Convert to fraction form
    75,311.50/160,631 = 160,631/x
  3. Step 3: Cross multiply
    75,311.50x = 160,631 × 160,631
  4. Step 4: Simplify right side
    75,311.50x = 25,802,318,161
  5. Step 5: Solve for x
    x = 25,802,318,161/75,311.50
  6. Step 6: Final answer
    x = 342,607.94

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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.