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Finding the Fourth Proportional to 123,161.63, 184,811.60 and 67,005.65

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Solution

The fourth proportional to 123,161.63, 184,811.60 and 67,005.65 is: 100,546.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,161.63 : 184,811.60 = 67,005.65 : x
  2. Step 2: Convert to fraction form
    123,161.63/184,811.60 = 67,005.65/x
  3. Step 3: Cross multiply
    123,161.63x = 184,811.60 × 67,005.65
  4. Step 4: Simplify right side
    123,161.63x = 12,383,422,015.08
  5. Step 5: Solve for x
    x = 12,383,422,015.08/123,161.63
  6. Step 6: Final answer
    x = 100,546.11

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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.