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Finding the Fourth Proportional to 313,041.56, 431,997.41 and 177,072.62

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Solution

The fourth proportional to 313,041.56, 431,997.41 and 177,072.62 is: 244,360.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    313,041.56 : 431,997.41 = 177,072.62 : x
  2. Step 2: Convert to fraction form
    313,041.56/431,997.41 = 177,072.62/x
  3. Step 3: Cross multiply
    313,041.56x = 431,997.41 × 177,072.62
  4. Step 4: Simplify right side
    313,041.56x = 76,494,911,504.61
  5. Step 5: Solve for x
    x = 76,494,911,504.61/313,041.56
  6. Step 6: Final answer
    x = 244,360.25

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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.