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Finding the Fourth Proportional to 324,580.12, 486,824.82 and 111,344.55

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Solution

The fourth proportional to 324,580.12, 486,824.82 and 111,344.55 is: 167,001.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    324,580.12 : 486,824.82 = 111,344.55 : x
  2. Step 2: Convert to fraction form
    324,580.12/486,824.82 = 111,344.55/x
  3. Step 3: Cross multiply
    324,580.12x = 486,824.82 × 111,344.55
  4. Step 4: Simplify right side
    324,580.12x = 54,205,290,511.73
  5. Step 5: Solve for x
    x = 54,205,290,511.73/324,580.12
  6. Step 6: Final answer
    x = 167,001.26

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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.