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Finding the Fourth Proportional to 324,552.75, 486,891.90 and 99,873.33

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Solution

The fourth proportional to 324,552.75, 486,891.90 and 99,873.33 is: 149,829.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    324,552.75 : 486,891.90 = 99,873.33 : x
  2. Step 2: Convert to fraction form
    324,552.75/486,891.90 = 99,873.33/x
  3. Step 3: Cross multiply
    324,552.75x = 486,891.90 × 99,873.33
  4. Step 4: Simplify right side
    324,552.75x = 48,627,515,403.03
  5. Step 5: Solve for x
    x = 48,627,515,403.03/324,552.75
  6. Step 6: Final answer
    x = 149,829.31

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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.