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Finding the Fourth Proportional to 119,673.27, 179,340.41 and 66,388.55

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Solution

The fourth proportional to 119,673.27, 179,340.41 and 66,388.55 is: 99,488.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,673.27 : 179,340.41 = 66,388.55 : x
  2. Step 2: Convert to fraction form
    119,673.27/179,340.41 = 66,388.55/x
  3. Step 3: Cross multiply
    119,673.27x = 179,340.41 × 66,388.55
  4. Step 4: Simplify right side
    119,673.27x = 11,906,149,045.57
  5. Step 5: Solve for x
    x = 11,906,149,045.57/119,673.27
  6. Step 6: Final answer
    x = 99,488.79

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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.