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Finding the Fourth Proportional to 62,541.44, 86,290.08 and 40,198.40

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Solution

The fourth proportional to 62,541.44, 86,290.08 and 40,198.40 is: 55,462.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    62,541.44 : 86,290.08 = 40,198.40 : x
  2. Step 2: Convert to fraction form
    62,541.44/86,290.08 = 40,198.40/x
  3. Step 3: Cross multiply
    62,541.44x = 86,290.08 × 40,198.40
  4. Step 4: Simplify right side
    62,541.44x = 3,468,723,151.87
  5. Step 5: Solve for x
    x = 3,468,723,151.87/62,541.44
  6. Step 6: Final answer
    x = 55,462.80

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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.