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Finding the Fourth Proportional to 119,698.39, 165,251.24 and 79,467.14

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Solution

The fourth proportional to 119,698.39, 165,251.24 and 79,467.14 is: 109,709.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,698.39 : 165,251.24 = 79,467.14 : x
  2. Step 2: Convert to fraction form
    119,698.39/165,251.24 = 79,467.14/x
  3. Step 3: Cross multiply
    119,698.39x = 165,251.24 × 79,467.14
  4. Step 4: Simplify right side
    119,698.39x = 13,132,043,738.05
  5. Step 5: Solve for x
    x = 13,132,043,738.05/119,698.39
  6. Step 6: Final answer
    x = 109,709.44

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.