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Finding the Fourth Proportional to 80,672.98, 111,315.61 and 44,862.07

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Solution

The fourth proportional to 80,672.98, 111,315.61 and 44,862.07 is: 61,902.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,672.98 : 111,315.61 = 44,862.07 : x
  2. Step 2: Convert to fraction form
    80,672.98/111,315.61 = 44,862.07/x
  3. Step 3: Cross multiply
    80,672.98x = 111,315.61 × 44,862.07
  4. Step 4: Simplify right side
    80,672.98x = 4,993,848,297.47
  5. Step 5: Solve for x
    x = 4,993,848,297.47/80,672.98
  6. Step 6: Final answer
    x = 61,902.37

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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.