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Finding the Fourth Proportional to 303,811.56, 419,252.58 and 167,858.52

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Solution

The fourth proportional to 303,811.56, 419,252.58 and 167,858.52 is: 231,640.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    303,811.56 : 419,252.58 = 167,858.52 : x
  2. Step 2: Convert to fraction form
    303,811.56/419,252.58 = 167,858.52/x
  3. Step 3: Cross multiply
    303,811.56x = 419,252.58 × 167,858.52
  4. Step 4: Simplify right side
    303,811.56x = 70,375,117,584.98
  5. Step 5: Solve for x
    x = 70,375,117,584.98/303,811.56
  6. Step 6: Final answer
    x = 231,640.68

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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.