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Finding the Fourth Proportional to 147,261.28, 220,891.94 and 36,453.28

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Solution

The fourth proportional to 147,261.28, 220,891.94 and 36,453.28 is: 54,679.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,261.28 : 220,891.94 = 36,453.28 : x
  2. Step 2: Convert to fraction form
    147,261.28/220,891.94 = 36,453.28/x
  3. Step 3: Cross multiply
    147,261.28x = 220,891.94 × 36,453.28
  4. Step 4: Simplify right side
    147,261.28x = 8,052,235,738.56
  5. Step 5: Solve for x
    x = 8,052,235,738.56/147,261.28
  6. Step 6: Final answer
    x = 54,679.92

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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.