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Finding the Fourth Proportional to 360,939.72, 541,222.69 and 192,414.78

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Solution

The fourth proportional to 360,939.72, 541,222.69 and 192,414.78 is: 288,522.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    360,939.72 : 541,222.69 = 192,414.78 : x
  2. Step 2: Convert to fraction form
    360,939.72/541,222.69 = 192,414.78/x
  3. Step 3: Cross multiply
    360,939.72x = 541,222.69 × 192,414.78
  4. Step 4: Simplify right side
    360,939.72x = 104,139,242,643.74
  5. Step 5: Solve for x
    x = 104,139,242,643.74/360,939.72
  6. Step 6: Final answer
    x = 288,522.54

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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.