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Finding the Fourth Proportional to 239,846.42, 359,706.96 and 71,321.40

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Solution

The fourth proportional to 239,846.42, 359,706.96 and 71,321.40 is: 106,963.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    239,846.42 : 359,706.96 = 71,321.40 : x
  2. Step 2: Convert to fraction form
    239,846.42/359,706.96 = 71,321.40/x
  3. Step 3: Cross multiply
    239,846.42x = 359,706.96 × 71,321.40
  4. Step 4: Simplify right side
    239,846.42x = 25,654,803,976.94
  5. Step 5: Solve for x
    x = 25,654,803,976.94/239,846.42
  6. Step 6: Final answer
    x = 106,963.46

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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.