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Finding the Fourth Proportional to 72,581.97, 108,888.51 and 25,198.56

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Solution

The fourth proportional to 72,581.97, 108,888.51 and 25,198.56 is: 37,803.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,581.97 : 108,888.51 = 25,198.56 : x
  2. Step 2: Convert to fraction form
    72,581.97/108,888.51 = 25,198.56/x
  3. Step 3: Cross multiply
    72,581.97x = 108,888.51 × 25,198.56
  4. Step 4: Simplify right side
    72,581.97x = 2,743,833,652.55
  5. Step 5: Solve for x
    x = 2,743,833,652.55/72,581.97
  6. Step 6: Final answer
    x = 37,803.24

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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.