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Finding the Fourth Proportional to 80,493.61, 111,092.73 and 48,229.51

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Solution

The fourth proportional to 80,493.61, 111,092.73 and 48,229.51 is: 66,563.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,493.61 : 111,092.73 = 48,229.51 : x
  2. Step 2: Convert to fraction form
    80,493.61/111,092.73 = 48,229.51/x
  3. Step 3: Cross multiply
    80,493.61x = 111,092.73 × 48,229.51
  4. Step 4: Simplify right side
    80,493.61x = 5,357,947,932.46
  5. Step 5: Solve for x
    x = 5,357,947,932.46/80,493.61
  6. Step 6: Final answer
    x = 66,563.64

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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.