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Finding the Fourth Proportional to 75,313.97, 103,932.60 and 41,321.81

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Solution

The fourth proportional to 75,313.97, 103,932.60 and 41,321.81 is: 57,023.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,313.97 : 103,932.60 = 41,321.81 : x
  2. Step 2: Convert to fraction form
    75,313.97/103,932.60 = 41,321.81/x
  3. Step 3: Cross multiply
    75,313.97x = 103,932.60 × 41,321.81
  4. Step 4: Simplify right side
    75,313.97x = 4,294,682,630.34
  5. Step 5: Solve for x
    x = 4,294,682,630.34/75,313.97
  6. Step 6: Final answer
    x = 57,023.72

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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.