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Finding the Fourth Proportional to 239,838.61, 359,695.24 and 71,313.56

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Solution

The fourth proportional to 239,838.61, 359,695.24 and 71,313.56 is: 106,951.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    239,838.61 : 359,695.24 = 71,313.56 : x
  2. Step 2: Convert to fraction form
    239,838.61/359,695.24 = 71,313.56/x
  3. Step 3: Cross multiply
    239,838.61x = 359,695.24 × 71,313.56
  4. Step 4: Simplify right side
    239,838.61x = 25,651,148,800.41
  5. Step 5: Solve for x
    x = 25,651,148,800.41/239,838.61
  6. Step 6: Final answer
    x = 106,951.71

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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.