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Finding the Fourth Proportional to 321,760.60, 482,559.93 and 132,273.81

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Solution

The fourth proportional to 321,760.60, 482,559.93 and 132,273.81 is: 198,377.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    321,760.60 : 482,559.93 = 132,273.81 : x
  2. Step 2: Convert to fraction form
    321,760.60/482,559.93 = 132,273.81/x
  3. Step 3: Cross multiply
    321,760.60x = 482,559.93 × 132,273.81
  4. Step 4: Simplify right side
    321,760.60x = 63,830,040,494.43
  5. Step 5: Solve for x
    x = 63,830,040,494.43/321,760.60
  6. Step 6: Final answer
    x = 198,377.43

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.