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Finding the Fourth Proportional to 321,836.82, 482,797.60 and 119,405.37

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Solution

The fourth proportional to 321,836.82, 482,797.60 and 119,405.37 is: 179,123.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    321,836.82 : 482,797.60 = 119,405.37 : x
  2. Step 2: Convert to fraction form
    321,836.82/482,797.60 = 119,405.37/x
  3. Step 3: Cross multiply
    321,836.82x = 482,797.60 × 119,405.37
  4. Step 4: Simplify right side
    321,836.82x = 57,648,626,063.11
  5. Step 5: Solve for x
    x = 57,648,626,063.11/321,836.82
  6. Step 6: Final answer
    x = 179,123.77

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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.