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Finding the Fourth Proportional to 321,807.93, 444,115.80 and 178,568.34

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Solution

The fourth proportional to 321,807.93, 444,115.80 and 178,568.34 is: 246,435.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    321,807.93 : 444,115.80 = 178,568.34 : x
  2. Step 2: Convert to fraction form
    321,807.93/444,115.80 = 178,568.34/x
  3. Step 3: Cross multiply
    321,807.93x = 444,115.80 × 178,568.34
  4. Step 4: Simplify right side
    321,807.93x = 79,305,021,173.77
  5. Step 5: Solve for x
    x = 79,305,021,173.77/321,807.93
  6. Step 6: Final answer
    x = 246,435.88

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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.