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Finding the Fourth Proportional to 119,944.80, 179,917.20 and 111,196.80

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Solution

The fourth proportional to 119,944.80, 179,917.20 and 111,196.80 is: 166,795.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,944.80 : 179,917.20 = 111,196.80 : x
  2. Step 2: Convert to fraction form
    119,944.80/179,917.20 = 111,196.80/x
  3. Step 3: Cross multiply
    119,944.80x = 179,917.20 × 111,196.80
  4. Step 4: Simplify right side
    119,944.80x = 20,006,216,904.96
  5. Step 5: Solve for x
    x = 20,006,216,904.96/119,944.80
  6. Step 6: Final answer
    x = 166,795.20

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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.