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Finding the Fourth Proportional to 80,679.66, 111,329.40 and 44,863.89

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Solution

The fourth proportional to 80,679.66, 111,329.40 and 44,863.89 is: 61,907.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,679.66 : 111,329.40 = 44,863.89 : x
  2. Step 2: Convert to fraction form
    80,679.66/111,329.40 = 44,863.89/x
  3. Step 3: Cross multiply
    80,679.66x = 111,329.40 × 44,863.89
  4. Step 4: Simplify right side
    80,679.66x = 4,994,669,955.37
  5. Step 5: Solve for x
    x = 4,994,669,955.37/80,679.66
  6. Step 6: Final answer
    x = 61,907.42

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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.