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Finding the Fourth Proportional to 70,951.95, 106,469.24 and 39,388.41

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Solution

The fourth proportional to 70,951.95, 106,469.24 and 39,388.41 is: 59,105.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,951.95 : 106,469.24 = 39,388.41 : x
  2. Step 2: Convert to fraction form
    70,951.95/106,469.24 = 39,388.41/x
  3. Step 3: Cross multiply
    70,951.95x = 106,469.24 × 39,388.41
  4. Step 4: Simplify right side
    70,951.95x = 4,193,653,880.57
  5. Step 5: Solve for x
    x = 4,193,653,880.57/70,951.95
  6. Step 6: Final answer
    x = 59,105.55

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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.