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Finding the Fourth Proportional to 75,356.56, 103,991.88 and 43,524.64

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Solution

The fourth proportional to 75,356.56, 103,991.88 and 43,524.64 is: 60,063.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,356.56 : 103,991.88 = 43,524.64 : x
  2. Step 2: Convert to fraction form
    75,356.56/103,991.88 = 43,524.64/x
  3. Step 3: Cross multiply
    75,356.56x = 103,991.88 × 43,524.64
  4. Step 4: Simplify right side
    75,356.56x = 4,526,209,139.92
  5. Step 5: Solve for x
    x = 4,526,209,139.92/75,356.56
  6. Step 6: Final answer
    x = 60,063.90

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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.