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Finding the Fourth Proportional to 117,691.44, 176,499.72 and 38,790.96

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Solution

The fourth proportional to 117,691.44, 176,499.72 and 38,790.96 is: 58,174.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,691.44 : 176,499.72 = 38,790.96 : x
  2. Step 2: Convert to fraction form
    117,691.44/176,499.72 = 38,790.96/x
  3. Step 3: Cross multiply
    117,691.44x = 176,499.72 × 38,790.96
  4. Step 4: Simplify right side
    117,691.44x = 6,846,593,578.53
  5. Step 5: Solve for x
    x = 6,846,593,578.53/117,691.44
  6. Step 6: Final answer
    x = 58,174.10

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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.