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Finding the Fourth Proportional to 68,375.52, 102,550.26 and 28,960.32

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Solution

The fourth proportional to 68,375.52, 102,550.26 and 28,960.32 is: 43,434.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,375.52 : 102,550.26 = 28,960.32 : x
  2. Step 2: Convert to fraction form
    68,375.52/102,550.26 = 28,960.32/x
  3. Step 3: Cross multiply
    68,375.52x = 102,550.26 × 28,960.32
  4. Step 4: Simplify right side
    68,375.52x = 2,969,888,345.68
  5. Step 5: Solve for x
    x = 2,969,888,345.68/68,375.52
  6. Step 6: Final answer
    x = 43,434.97

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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.