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Finding the Fourth Proportional to 57,361.95, 79,127.40 and 36,104.31

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Solution

The fourth proportional to 57,361.95, 79,127.40 and 36,104.31 is: 49,803.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,361.95 : 79,127.40 = 36,104.31 : x
  2. Step 2: Convert to fraction form
    57,361.95/79,127.40 = 36,104.31/x
  3. Step 3: Cross multiply
    57,361.95x = 79,127.40 × 36,104.31
  4. Step 4: Simplify right side
    57,361.95x = 2,856,840,179.09
  5. Step 5: Solve for x
    x = 2,856,840,179.09/57,361.95
  6. Step 6: Final answer
    x = 49,803.75

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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.