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Finding the Fourth Proportional to 68,765.91, 103,124.24 and 37,199.31

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Solution

The fourth proportional to 68,765.91, 103,124.24 and 37,199.31 is: 55,785.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,765.91 : 103,124.24 = 37,199.31 : x
  2. Step 2: Convert to fraction form
    68,765.91/103,124.24 = 37,199.31/x
  3. Step 3: Cross multiply
    68,765.91x = 103,124.24 × 37,199.31
  4. Step 4: Simplify right side
    68,765.91x = 3,836,150,572.27
  5. Step 5: Solve for x
    x = 3,836,150,572.27/68,765.91
  6. Step 6: Final answer
    x = 55,785.64

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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.