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Finding the Fourth Proportional to 311,738.57, 467,568.97 and 124,751.69

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Solution

The fourth proportional to 311,738.57, 467,568.97 and 124,751.69 is: 187,111.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    311,738.57 : 467,568.97 = 124,751.69 : x
  2. Step 2: Convert to fraction form
    311,738.57/467,568.97 = 124,751.69/x
  3. Step 3: Cross multiply
    311,738.57x = 467,568.97 × 124,751.69
  4. Step 4: Simplify right side
    311,738.57x = 58,330,019,199.06
  5. Step 5: Solve for x
    x = 58,330,019,199.06/311,738.57
  6. Step 6: Final answer
    x = 187,111.97

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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.