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Finding the Fourth Proportional to 394,751.16, 591,900 and 154,583.82

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Solution

The fourth proportional to 394,751.16, 591,900 and 154,583.82 is: 231,786.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    394,751.16 : 591,900 = 154,583.82 : x
  2. Step 2: Convert to fraction form
    394,751.16/591,900 = 154,583.82/x
  3. Step 3: Cross multiply
    394,751.16x = 591,900 × 154,583.82
  4. Step 4: Simplify right side
    394,751.16x = 91,498,163,058
  5. Step 5: Solve for x
    x = 91,498,163,058/394,751.16
  6. Step 6: Final answer
    x = 231,786.94

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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.