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Finding the Fourth Proportional to 71,183.70, 98,232.39 and 39,351.92

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Solution

The fourth proportional to 71,183.70, 98,232.39 and 39,351.92 is: 54,305.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,183.70 : 98,232.39 = 39,351.92 : x
  2. Step 2: Convert to fraction form
    71,183.70/98,232.39 = 39,351.92/x
  3. Step 3: Cross multiply
    71,183.70x = 98,232.39 × 39,351.92
  4. Step 4: Simplify right side
    71,183.70x = 3,865,632,661.53
  5. Step 5: Solve for x
    x = 3,865,632,661.53/71,183.70
  6. Step 6: Final answer
    x = 54,305.03

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.