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Finding the Fourth Proportional to 57,456.59, 79,299.36 and 33,578.60

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Solution

The fourth proportional to 57,456.59, 79,299.36 and 33,578.60 is: 46,343.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,456.59 : 79,299.36 = 33,578.60 : x
  2. Step 2: Convert to fraction form
    57,456.59/79,299.36 = 33,578.60/x
  3. Step 3: Cross multiply
    57,456.59x = 79,299.36 × 33,578.60
  4. Step 4: Simplify right side
    57,456.59x = 2,662,761,093.20
  5. Step 5: Solve for x
    x = 2,662,761,093.20/57,456.59
  6. Step 6: Final answer
    x = 46,343.88

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.