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Finding the Fourth Proportional to 133,451.68, 200,227.68 and 69,369.88

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Solution

The fourth proportional to 133,451.68, 200,227.68 and 69,369.88 is: 104,080.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,451.68 : 200,227.68 = 69,369.88 : x
  2. Step 2: Convert to fraction form
    133,451.68/200,227.68 = 69,369.88/x
  3. Step 3: Cross multiply
    133,451.68x = 200,227.68 × 69,369.88
  4. Step 4: Simplify right side
    133,451.68x = 13,889,770,134.28
  5. Step 5: Solve for x
    x = 13,889,770,134.28/133,451.68
  6. Step 6: Final answer
    x = 104,080.89

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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.