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Finding the Fourth Proportional to 225,399.62, 338,132.38 and 67,640.52

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Solution

The fourth proportional to 225,399.62, 338,132.38 and 67,640.52 is: 101,470.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    225,399.62 : 338,132.38 = 67,640.52 : x
  2. Step 2: Convert to fraction form
    225,399.62/338,132.38 = 67,640.52/x
  3. Step 3: Cross multiply
    225,399.62x = 338,132.38 × 67,640.52
  4. Step 4: Simplify right side
    225,399.62x = 22,871,450,012.04
  5. Step 5: Solve for x
    x = 22,871,450,012.04/225,399.62
  6. Step 6: Final answer
    x = 101,470.67

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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.