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Finding the Fourth Proportional to 122,474.55, 183,723.37 and 47,600.43

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Solution

The fourth proportional to 122,474.55, 183,723.37 and 47,600.43 is: 71,405.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,474.55 : 183,723.37 = 47,600.43 : x
  2. Step 2: Convert to fraction form
    122,474.55/183,723.37 = 47,600.43/x
  3. Step 3: Cross multiply
    122,474.55x = 183,723.37 × 47,600.43
  4. Step 4: Simplify right side
    122,474.55x = 8,745,310,872.84
  5. Step 5: Solve for x
    x = 8,745,310,872.84/122,474.55
  6. Step 6: Final answer
    x = 71,405.13

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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.