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Finding the Fourth Proportional to 75,356.62, 103,986.44 and 41,359.72

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Solution

The fourth proportional to 75,356.62, 103,986.44 and 41,359.72 is: 57,073.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,356.62 : 103,986.44 = 41,359.72 : x
  2. Step 2: Convert to fraction form
    75,356.62/103,986.44 = 41,359.72/x
  3. Step 3: Cross multiply
    75,356.62x = 103,986.44 × 41,359.72
  4. Step 4: Simplify right side
    75,356.62x = 4,300,850,042.20
  5. Step 5: Solve for x
    x = 4,300,850,042.20/75,356.62
  6. Step 6: Final answer
    x = 57,073.29

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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.