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Finding the Fourth Proportional to 119,469.47, 179,103.76 and 79,905.83

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Solution

The fourth proportional to 119,469.47, 179,103.76 and 79,905.83 is: 119,791.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,469.47 : 179,103.76 = 79,905.83 : x
  2. Step 2: Convert to fraction form
    119,469.47/179,103.76 = 79,905.83/x
  3. Step 3: Cross multiply
    119,469.47x = 179,103.76 × 79,905.83
  4. Step 4: Simplify right side
    119,469.47x = 14,311,434,598.92
  5. Step 5: Solve for x
    x = 14,311,434,598.92/119,469.47
  6. Step 6: Final answer
    x = 119,791.56

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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.