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Finding the Fourth Proportional to 321,894.28, 444,205.60 and 178,650.64

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Solution

The fourth proportional to 321,894.28, 444,205.60 and 178,650.64 is: 246,533.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    321,894.28 : 444,205.60 = 178,650.64 : x
  2. Step 2: Convert to fraction form
    321,894.28/444,205.60 = 178,650.64/x
  3. Step 3: Cross multiply
    321,894.28x = 444,205.60 × 178,650.64
  4. Step 4: Simplify right side
    321,894.28x = 79,357,614,731.58
  5. Step 5: Solve for x
    x = 79,357,614,731.58/321,894.28
  6. Step 6: Final answer
    x = 246,533.16

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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.