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Finding the Fourth Proportional to 68,769.37, 103,159.52 and 29,326.82

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Solution

The fourth proportional to 68,769.37, 103,159.52 and 29,326.82 is: 43,992.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,769.37 : 103,159.52 = 29,326.82 : x
  2. Step 2: Convert to fraction form
    68,769.37/103,159.52 = 29,326.82/x
  3. Step 3: Cross multiply
    68,769.37x = 103,159.52 × 29,326.82
  4. Step 4: Simplify right side
    68,769.37x = 3,025,340,674.33
  5. Step 5: Solve for x
    x = 3,025,340,674.33/68,769.37
  6. Step 6: Final answer
    x = 43,992.56

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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.