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Finding the Fourth Proportional to 100,393.41, 150,558.69 and 36,343.47

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Solution

The fourth proportional to 100,393.41, 150,558.69 and 36,343.47 is: 54,503.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,393.41 : 150,558.69 = 36,343.47 : x
  2. Step 2: Convert to fraction form
    100,393.41/150,558.69 = 36,343.47/x
  3. Step 3: Cross multiply
    100,393.41x = 150,558.69 × 36,343.47
  4. Step 4: Simplify right side
    100,393.41x = 5,471,825,233.25
  5. Step 5: Solve for x
    x = 5,471,825,233.25/100,393.41
  6. Step 6: Final answer
    x = 54,503.83

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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.