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Finding the Fourth Proportional to 57,167.64, 78,891.30 and 33,310.44

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Solution

The fourth proportional to 57,167.64, 78,891.30 and 33,310.44 is: 45,968.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,167.64 : 78,891.30 = 33,310.44 : x
  2. Step 2: Convert to fraction form
    57,167.64/78,891.30 = 33,310.44/x
  3. Step 3: Cross multiply
    57,167.64x = 78,891.30 × 33,310.44
  4. Step 4: Simplify right side
    57,167.64x = 2,627,903,915.17
  5. Step 5: Solve for x
    x = 2,627,903,915.17/57,167.64
  6. Step 6: Final answer
    x = 45,968.38

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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.