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Finding the Fourth Proportional to 321,755.56, 444,022.73 and 178,515.26

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Solution

The fourth proportional to 321,755.56, 444,022.73 and 178,515.26 is: 246,351.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    321,755.56 : 444,022.73 = 178,515.26 : x
  2. Step 2: Convert to fraction form
    321,755.56/444,022.73 = 178,515.26/x
  3. Step 3: Cross multiply
    321,755.56x = 444,022.73 × 178,515.26
  4. Step 4: Simplify right side
    321,755.56x = 79,264,833,091.86
  5. Step 5: Solve for x
    x = 79,264,833,091.86/321,755.56
  6. Step 6: Final answer
    x = 246,351.09

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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.