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Finding the Fourth Proportional to 193,382.53, 290,067.39 and 79,526.40

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Solution

The fourth proportional to 193,382.53, 290,067.39 and 79,526.40 is: 119,286.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    193,382.53 : 290,067.39 = 79,526.40 : x
  2. Step 2: Convert to fraction form
    193,382.53/290,067.39 = 79,526.40/x
  3. Step 3: Cross multiply
    193,382.53x = 290,067.39 × 79,526.40
  4. Step 4: Simplify right side
    193,382.53x = 23,068,015,284.10
  5. Step 5: Solve for x
    x = 23,068,015,284.10/193,382.53
  6. Step 6: Final answer
    x = 119,286.97

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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.