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Finding the Fourth Proportional to 74,861.88, 103,309.46 and 41,327.88

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Solution

The fourth proportional to 74,861.88, 103,309.46 and 41,327.88 is: 57,032.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,861.88 : 103,309.46 = 41,327.88 : x
  2. Step 2: Convert to fraction form
    74,861.88/103,309.46 = 41,327.88/x
  3. Step 3: Cross multiply
    74,861.88x = 103,309.46 × 41,327.88
  4. Step 4: Simplify right side
    74,861.88x = 4,269,560,965.74
  5. Step 5: Solve for x
    x = 4,269,560,965.74/74,861.88
  6. Step 6: Final answer
    x = 57,032.51

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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.