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Finding the Fourth Proportional to 321,783.74, 444,055.86 and 178,541.30

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Solution

The fourth proportional to 321,783.74, 444,055.86 and 178,541.30 is: 246,383.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    321,783.74 : 444,055.86 = 178,541.30 : x
  2. Step 2: Convert to fraction form
    321,783.74/444,055.86 = 178,541.30/x
  3. Step 3: Cross multiply
    321,783.74x = 444,055.86 × 178,541.30
  4. Step 4: Simplify right side
    321,783.74x = 79,282,310,517.02
  5. Step 5: Solve for x
    x = 79,282,310,517.02/321,783.74
  6. Step 6: Final answer
    x = 246,383.83

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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.