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Finding the Fourth Proportional to 303,900.36, 419,381.46 and 167,930.52

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Solution

The fourth proportional to 303,900.36, 419,381.46 and 167,930.52 is: 231,743.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    303,900.36 : 419,381.46 = 167,930.52 : x
  2. Step 2: Convert to fraction form
    303,900.36/419,381.46 = 167,930.52/x
  3. Step 3: Cross multiply
    303,900.36x = 419,381.46 × 167,930.52
  4. Step 4: Simplify right side
    303,900.36x = 70,426,946,656.16
  5. Step 5: Solve for x
    x = 70,426,946,656.16/303,900.36
  6. Step 6: Final answer
    x = 231,743.54

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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.