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Finding the Fourth Proportional to 303,760.72, 419,212.78 and 174,738.70

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Solution

The fourth proportional to 303,760.72, 419,212.78 and 174,738.70 is: 241,152.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    303,760.72 : 419,212.78 = 174,738.70 : x
  2. Step 2: Convert to fraction form
    303,760.72/419,212.78 = 174,738.70/x
  3. Step 3: Cross multiply
    303,760.72x = 419,212.78 × 174,738.70
  4. Step 4: Simplify right side
    303,760.72x = 73,252,696,200.59
  5. Step 5: Solve for x
    x = 73,252,696,200.59/303,760.72
  6. Step 6: Final answer
    x = 241,152.63

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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.