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Finding the Fourth Proportional to 194,385.57, 291,378.41 and 74,414.27

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Solution

The fourth proportional to 194,385.57, 291,378.41 and 74,414.27 is: 111,544.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    194,385.57 : 291,378.41 = 74,414.27 : x
  2. Step 2: Convert to fraction form
    194,385.57/291,378.41 = 74,414.27/x
  3. Step 3: Cross multiply
    194,385.57x = 291,378.41 × 74,414.27
  4. Step 4: Simplify right side
    194,385.57x = 21,682,711,908.42
  5. Step 5: Solve for x
    x = 21,682,711,908.42/194,385.57
  6. Step 6: Final answer
    x = 111,544.86

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.