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Finding the Fourth Proportional to 53,859.74, 80,718.33 and 41,331.89

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Solution

The fourth proportional to 53,859.74, 80,718.33 and 41,331.89 is: 61,943.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,859.74 : 80,718.33 = 41,331.89 : x
  2. Step 2: Convert to fraction form
    53,859.74/80,718.33 = 41,331.89/x
  3. Step 3: Cross multiply
    53,859.74x = 80,718.33 × 41,331.89
  4. Step 4: Simplify right side
    53,859.74x = 3,336,241,136.54
  5. Step 5: Solve for x
    x = 3,336,241,136.54/53,859.74
  6. Step 6: Final answer
    x = 61,943.13

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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.