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Finding the Fourth Proportional to 79,925.88, 119,942.26 and 33,178.76

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Solution

The fourth proportional to 79,925.88, 119,942.26 and 33,178.76 is: 49,790.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,925.88 : 119,942.26 = 33,178.76 : x
  2. Step 2: Convert to fraction form
    79,925.88/119,942.26 = 33,178.76/x
  3. Step 3: Cross multiply
    79,925.88x = 119,942.26 × 33,178.76
  4. Step 4: Simplify right side
    79,925.88x = 3,979,535,458.40
  5. Step 5: Solve for x
    x = 3,979,535,458.40/79,925.88
  6. Step 6: Final answer
    x = 49,790.32

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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.