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Finding the Fourth Proportional to 321,866.52, 444,155.14 and 201,000.60

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Solution

The fourth proportional to 321,866.52, 444,155.14 and 201,000.60 is: 277,367.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    321,866.52 : 444,155.14 = 201,000.60 : x
  2. Step 2: Convert to fraction form
    321,866.52/444,155.14 = 201,000.60/x
  3. Step 3: Cross multiply
    321,866.52x = 444,155.14 × 201,000.60
  4. Step 4: Simplify right side
    321,866.52x = 89,275,449,633.08
  5. Step 5: Solve for x
    x = 89,275,449,633.08/321,866.52
  6. Step 6: Final answer
    x = 277,367.93

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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.