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Finding the Fourth Proportional to 66,576.66, 91,873.71 and 36,361.50

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Solution

The fourth proportional to 66,576.66, 91,873.71 and 36,361.50 is: 50,177.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,576.66 : 91,873.71 = 36,361.50 : x
  2. Step 2: Convert to fraction form
    66,576.66/91,873.71 = 36,361.50/x
  3. Step 3: Cross multiply
    66,576.66x = 91,873.71 × 36,361.50
  4. Step 4: Simplify right side
    66,576.66x = 3,340,665,906.17
  5. Step 5: Solve for x
    x = 3,340,665,906.17/66,576.66
  6. Step 6: Final answer
    x = 50,177.73

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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.