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Finding the Fourth Proportional to 73,960.82, 110,940.20 and 69,232.80

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Solution

The fourth proportional to 73,960.82, 110,940.20 and 69,232.80 is: 103,848.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,960.82 : 110,940.20 = 69,232.80 : x
  2. Step 2: Convert to fraction form
    73,960.82/110,940.20 = 69,232.80/x
  3. Step 3: Cross multiply
    73,960.82x = 110,940.20 × 69,232.80
  4. Step 4: Simplify right side
    73,960.82x = 7,680,700,678.56
  5. Step 5: Solve for x
    x = 7,680,700,678.56/73,960.82
  6. Step 6: Final answer
    x = 103,848.24

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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.