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Finding the Fourth Proportional to 99,399.53, 149,048.21 and 29,269.73

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Solution

The fourth proportional to 99,399.53, 149,048.21 and 29,269.73 is: 43,889.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,399.53 : 149,048.21 = 29,269.73 : x
  2. Step 2: Convert to fraction form
    99,399.53/149,048.21 = 29,269.73/x
  3. Step 3: Cross multiply
    99,399.53x = 149,048.21 × 29,269.73
  4. Step 4: Simplify right side
    99,399.53x = 4,362,600,863.68
  5. Step 5: Solve for x
    x = 4,362,600,863.68/99,399.53
  6. Step 6: Final answer
    x = 43,889.55

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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.