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Finding the Fourth Proportional to 73,144.75, 109,645.73 and 35,703.31

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Solution

The fourth proportional to 73,144.75, 109,645.73 and 35,703.31 is: 53,520.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,144.75 : 109,645.73 = 35,703.31 : x
  2. Step 2: Convert to fraction form
    73,144.75/109,645.73 = 35,703.31/x
  3. Step 3: Cross multiply
    73,144.75x = 109,645.73 × 35,703.31
  4. Step 4: Simplify right side
    73,144.75x = 3,914,715,309.85
  5. Step 5: Solve for x
    x = 3,914,715,309.85/73,144.75
  6. Step 6: Final answer
    x = 53,520.11

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.