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Finding the Fourth Proportional to 55,481.86, 83,243.76 and 33,310.69

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Solution

The fourth proportional to 55,481.86, 83,243.76 and 33,310.69 is: 49,978.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,481.86 : 83,243.76 = 33,310.69 : x
  2. Step 2: Convert to fraction form
    55,481.86/83,243.76 = 33,310.69/x
  3. Step 3: Cross multiply
    55,481.86x = 83,243.76 × 33,310.69
  4. Step 4: Simplify right side
    55,481.86x = 2,772,907,083.79
  5. Step 5: Solve for x
    x = 2,772,907,083.79/55,481.86
  6. Step 6: Final answer
    x = 49,978.63

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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.