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Finding the Fourth Proportional to 133,097.73, 183,608.60 and 79,344.87

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Solution

The fourth proportional to 133,097.73, 183,608.60 and 79,344.87 is: 109,456.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,097.73 : 183,608.60 = 79,344.87 : x
  2. Step 2: Convert to fraction form
    133,097.73/183,608.60 = 79,344.87/x
  3. Step 3: Cross multiply
    133,097.73x = 183,608.60 × 79,344.87
  4. Step 4: Simplify right side
    133,097.73x = 14,568,400,101.16
  5. Step 5: Solve for x
    x = 14,568,400,101.16/133,097.73
  6. Step 6: Final answer
    x = 109,456.41

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.