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Finding the Fourth Proportional to 122,469.39, 183,744.99 and 47,591.98

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Solution

The fourth proportional to 122,469.39, 183,744.99 and 47,591.98 is: 71,403.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,469.39 : 183,744.99 = 47,591.98 : x
  2. Step 2: Convert to fraction form
    122,469.39/183,744.99 = 47,591.98/x
  3. Step 3: Cross multiply
    122,469.39x = 183,744.99 × 47,591.98
  4. Step 4: Simplify right side
    122,469.39x = 8,744,787,429.82
  5. Step 5: Solve for x
    x = 8,744,787,429.82/122,469.39
  6. Step 6: Final answer
    x = 71,403.86

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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.