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Finding the Fourth Proportional to 122,912.68, 184,372.67 and 48,029.80

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Solution

The fourth proportional to 122,912.68, 184,372.67 and 48,029.80 is: 72,046.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,912.68 : 184,372.67 = 48,029.80 : x
  2. Step 2: Convert to fraction form
    122,912.68/184,372.67 = 48,029.80/x
  3. Step 3: Cross multiply
    122,912.68x = 184,372.67 × 48,029.80
  4. Step 4: Simplify right side
    122,912.68x = 8,855,382,465.57
  5. Step 5: Solve for x
    x = 8,855,382,465.57/122,912.68
  6. Step 6: Final answer
    x = 72,046.13

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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.