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Finding the Fourth Proportional to 73,686.44, 110,391.10 and 43,611.56

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Solution

The fourth proportional to 73,686.44, 110,391.10 and 43,611.56 is: 65,335.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,686.44 : 110,391.10 = 43,611.56 : x
  2. Step 2: Convert to fraction form
    73,686.44/110,391.10 = 43,611.56/x
  3. Step 3: Cross multiply
    73,686.44x = 110,391.10 × 43,611.56
  4. Step 4: Simplify right side
    73,686.44x = 4,814,328,081.12
  5. Step 5: Solve for x
    x = 4,814,328,081.12/73,686.44
  6. Step 6: Final answer
    x = 65,335.33

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.