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Finding the Fourth Proportional to 239,838.37, 359,694.86 and 71,313.31

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Solution

The fourth proportional to 239,838.37, 359,694.86 and 71,313.31 is: 106,951.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    239,838.37 : 359,694.86 = 71,313.31 : x
  2. Step 2: Convert to fraction form
    239,838.37/359,694.86 = 71,313.31/x
  3. Step 3: Cross multiply
    239,838.37x = 359,694.86 × 71,313.31
  4. Step 4: Simplify right side
    239,838.37x = 25,651,028,901.55
  5. Step 5: Solve for x
    x = 25,651,028,901.55/239,838.37
  6. Step 6: Final answer
    x = 106,951.32

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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.