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Finding the Fourth Proportional to 75,145.56, 103,704 and 41,611.56

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Solution

The fourth proportional to 75,145.56, 103,704 and 41,611.56 is: 57,425.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,145.56 : 103,704 = 41,611.56 : x
  2. Step 2: Convert to fraction form
    75,145.56/103,704 = 41,611.56/x
  3. Step 3: Cross multiply
    75,145.56x = 103,704 × 41,611.56
  4. Step 4: Simplify right side
    75,145.56x = 4,315,285,218.24
  5. Step 5: Solve for x
    x = 4,315,285,218.24/75,145.56
  6. Step 6: Final answer
    x = 57,425.68

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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.