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Finding the Fourth Proportional to 321,517.34, 482,177.48 and 222,315.02

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Solution

The fourth proportional to 321,517.34, 482,177.48 and 222,315.02 is: 333,404.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    321,517.34 : 482,177.48 = 222,315.02 : x
  2. Step 2: Convert to fraction form
    321,517.34/482,177.48 = 222,315.02/x
  3. Step 3: Cross multiply
    321,517.34x = 482,177.48 × 222,315.02
  4. Step 4: Simplify right side
    321,517.34x = 107,195,294,998.17
  5. Step 5: Solve for x
    x = 107,195,294,998.17/321,517.34
  6. Step 6: Final answer
    x = 333,404.40

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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.