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Finding the Fourth Proportional to 57,213.88, 78,936.60 and 37,086.46

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Solution

The fourth proportional to 57,213.88, 78,936.60 and 37,086.46 is: 51,167.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,213.88 : 78,936.60 = 37,086.46 : x
  2. Step 2: Convert to fraction form
    57,213.88/78,936.60 = 37,086.46/x
  3. Step 3: Cross multiply
    57,213.88x = 78,936.60 × 37,086.46
  4. Step 4: Simplify right side
    57,213.88x = 2,927,479,058.44
  5. Step 5: Solve for x
    x = 2,927,479,058.44/57,213.88
  6. Step 6: Final answer
    x = 51,167.29

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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.