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Finding the Fourth Proportional to 133,449.89, 184,142.66 and 79,723.49

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Solution

The fourth proportional to 133,449.89, 184,142.66 and 79,723.49 is: 110,007.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,449.89 : 184,142.66 = 79,723.49 : x
  2. Step 2: Convert to fraction form
    133,449.89/184,142.66 = 79,723.49/x
  3. Step 3: Cross multiply
    133,449.89x = 184,142.66 × 79,723.49
  4. Step 4: Simplify right side
    133,449.89x = 14,680,494,193.75
  5. Step 5: Solve for x
    x = 14,680,494,193.75/133,449.89
  6. Step 6: Final answer
    x = 110,007.54

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.