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Finding the Fourth Proportional to 193,244.52, 289,886.65 and 66,884.56

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Solution

The fourth proportional to 193,244.52, 289,886.65 and 66,884.56 is: 100,333.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    193,244.52 : 289,886.65 = 66,884.56 : x
  2. Step 2: Convert to fraction form
    193,244.52/289,886.65 = 66,884.56/x
  3. Step 3: Cross multiply
    193,244.52x = 289,886.65 × 66,884.56
  4. Step 4: Simplify right side
    193,244.52x = 19,388,940,700.70
  5. Step 5: Solve for x
    x = 19,388,940,700.70/193,244.52
  6. Step 6: Final answer
    x = 100,333.71

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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.