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Finding the Fourth Proportional to 150,756.56, 225,868.74 and 91,471.84

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Solution

The fourth proportional to 150,756.56, 225,868.74 and 91,471.84 is: 137,046.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    150,756.56 : 225,868.74 = 91,471.84 : x
  2. Step 2: Convert to fraction form
    150,756.56/225,868.74 = 91,471.84/x
  3. Step 3: Cross multiply
    150,756.56x = 225,868.74 × 91,471.84
  4. Step 4: Simplify right side
    150,756.56x = 20,660,629,246.28
  5. Step 5: Solve for x
    x = 20,660,629,246.28/150,756.56
  6. Step 6: Final answer
    x = 137,046.30

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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.