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Finding the Fourth Proportional to 239,789.70, 359,684.46 and 71,309.34

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Solution

The fourth proportional to 239,789.70, 359,684.46 and 71,309.34 is: 106,963.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    239,789.70 : 359,684.46 = 71,309.34 : x
  2. Step 2: Convert to fraction form
    239,789.70/359,684.46 = 71,309.34/x
  3. Step 3: Cross multiply
    239,789.70x = 359,684.46 × 71,309.34
  4. Step 4: Simplify right side
    239,789.70x = 25,648,861,450.86
  5. Step 5: Solve for x
    x = 25,648,861,450.86/239,789.70
  6. Step 6: Final answer
    x = 106,963.98

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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.