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Finding the Fourth Proportional to 80,379.78, 110,928.53 and 44,569.02

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Solution

The fourth proportional to 80,379.78, 110,928.53 and 44,569.02 is: 61,507.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,379.78 : 110,928.53 = 44,569.02 : x
  2. Step 2: Convert to fraction form
    80,379.78/110,928.53 = 44,569.02/x
  3. Step 3: Cross multiply
    80,379.78x = 110,928.53 × 44,569.02
  4. Step 4: Simplify right side
    80,379.78x = 4,943,975,872.14
  5. Step 5: Solve for x
    x = 4,943,975,872.14/80,379.78
  6. Step 6: Final answer
    x = 61,507.71

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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.