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Finding the Fourth Proportional to 79,323.70, 109,436.52 and 50,644.44

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Solution

The fourth proportional to 79,323.70, 109,436.52 and 50,644.44 is: 69,870.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,323.70 : 109,436.52 = 50,644.44 : x
  2. Step 2: Convert to fraction form
    79,323.70/109,436.52 = 50,644.44/x
  3. Step 3: Cross multiply
    79,323.70x = 109,436.52 × 50,644.44
  4. Step 4: Simplify right side
    79,323.70x = 5,542,351,270.95
  5. Step 5: Solve for x
    x = 5,542,351,270.95/79,323.70
  6. Step 6: Final answer
    x = 69,870.05

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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.