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Finding the Fourth Proportional to 303,759.66, 419,189.19 and 167,790.90

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Solution

The fourth proportional to 303,759.66, 419,189.19 and 167,790.90 is: 231,551.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    303,759.66 : 419,189.19 = 167,790.90 : x
  2. Step 2: Convert to fraction form
    303,759.66/419,189.19 = 167,790.90/x
  3. Step 3: Cross multiply
    303,759.66x = 419,189.19 × 167,790.90
  4. Step 4: Simplify right side
    303,759.66x = 70,336,131,460.37
  5. Step 5: Solve for x
    x = 70,336,131,460.37/303,759.66
  6. Step 6: Final answer
    x = 231,551.92

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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.