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Finding the Fourth Proportional to 339,438.57, 468,373.18 and 196,170.96

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Solution

The fourth proportional to 339,438.57, 468,373.18 and 196,170.96 is: 270,685.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    339,438.57 : 468,373.18 = 196,170.96 : x
  2. Step 2: Convert to fraction form
    339,438.57/468,373.18 = 196,170.96/x
  3. Step 3: Cross multiply
    339,438.57x = 468,373.18 × 196,170.96
  4. Step 4: Simplify right side
    339,438.57x = 91,881,216,358.85
  5. Step 5: Solve for x
    x = 91,881,216,358.85/339,438.57
  6. Step 6: Final answer
    x = 270,685.85

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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.