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Finding the Fourth Proportional to 80,472.45, 111,046.81 and 44,662.49

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Solution

The fourth proportional to 80,472.45, 111,046.81 and 44,662.49 is: 61,631.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,472.45 : 111,046.81 = 44,662.49 : x
  2. Step 2: Convert to fraction form
    80,472.45/111,046.81 = 44,662.49/x
  3. Step 3: Cross multiply
    80,472.45x = 111,046.81 × 44,662.49
  4. Step 4: Simplify right side
    80,472.45x = 4,959,627,041.16
  5. Step 5: Solve for x
    x = 4,959,627,041.16/80,472.45
  6. Step 6: Final answer
    x = 61,631.37

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.