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Finding the Fourth Proportional to 73,163.46, 109,694.76 and 28,795.31

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Solution

The fourth proportional to 73,163.46, 109,694.76 and 28,795.31 is: 43,173.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,163.46 : 109,694.76 = 28,795.31 : x
  2. Step 2: Convert to fraction form
    73,163.46/109,694.76 = 28,795.31/x
  3. Step 3: Cross multiply
    73,163.46x = 109,694.76 × 28,795.31
  4. Step 4: Simplify right side
    73,163.46x = 3,158,694,071.10
  5. Step 5: Solve for x
    x = 3,158,694,071.10/73,163.46
  6. Step 6: Final answer
    x = 43,173.11

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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.