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Finding the Fourth Proportional to 193,274.97, 266,719.19 and 108,391.29

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Solution

The fourth proportional to 193,274.97, 266,719.19 and 108,391.29 is: 149,579.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    193,274.97 : 266,719.19 = 108,391.29 : x
  2. Step 2: Convert to fraction form
    193,274.97/266,719.19 = 108,391.29/x
  3. Step 3: Cross multiply
    193,274.97x = 266,719.19 × 108,391.29
  4. Step 4: Simplify right side
    193,274.97x = 28,910,037,071.86
  5. Step 5: Solve for x
    x = 28,910,037,071.86/193,274.97
  6. Step 6: Final answer
    x = 149,579.83

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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.