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Finding the Fourth Proportional to 99,571.54, 149,386.47 and 29,452.72

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Solution

The fourth proportional to 99,571.54, 149,386.47 and 29,452.72 is: 44,187.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,571.54 : 149,386.47 = 29,452.72 : x
  2. Step 2: Convert to fraction form
    99,571.54/149,386.47 = 29,452.72/x
  3. Step 3: Cross multiply
    99,571.54x = 149,386.47 × 29,452.72
  4. Step 4: Simplify right side
    99,571.54x = 4,399,837,872.70
  5. Step 5: Solve for x
    x = 4,399,837,872.70/99,571.54
  6. Step 6: Final answer
    x = 44,187.71

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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.