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Finding the Fourth Proportional to 73,713.88, 110,505.34 and 28,724.82

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Solution

The fourth proportional to 73,713.88, 110,505.34 and 28,724.82 is: 43,061.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,713.88 : 110,505.34 = 28,724.82 : x
  2. Step 2: Convert to fraction form
    73,713.88/110,505.34 = 28,724.82/x
  3. Step 3: Cross multiply
    73,713.88x = 110,505.34 × 28,724.82
  4. Step 4: Simplify right side
    73,713.88x = 3,174,246,000.54
  5. Step 5: Solve for x
    x = 3,174,246,000.54/73,713.88
  6. Step 6: Final answer
    x = 43,061.71

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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.