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Finding the Fourth Proportional to 90,198.59, 135,275.99 and 37,579.37

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Solution

The fourth proportional to 90,198.59, 135,275.99 and 37,579.37 is: 56,359.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,198.59 : 135,275.99 = 37,579.37 : x
  2. Step 2: Convert to fraction form
    90,198.59/135,275.99 = 37,579.37/x
  3. Step 3: Cross multiply
    90,198.59x = 135,275.99 × 37,579.37
  4. Step 4: Simplify right side
    90,198.59x = 5,083,585,616.05
  5. Step 5: Solve for x
    x = 5,083,585,616.05/90,198.59
  6. Step 6: Final answer
    x = 56,359.93

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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.