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Finding the Third Proportional to 75,504 and 105,821.25

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Solution

The third proportional to 75,504 and 105,821.25 is: 148,311.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,504 : 105,821.25 = 105,821.25 : x
  2. Step 2: Convert to fraction form
    75,504/105,821.25 = 105,821.25/x
  3. Step 3: Cross multiply
    75,504x = 105,821.25 × 105,821.25
  4. Step 4: Simplify right side
    75,504x = 11,198,136,951.56
  5. Step 5: Solve for x
    x = 11,198,136,951.56/75,504
  6. Step 6: Final answer
    x = 148,311.84

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Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.