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Finding the Fourth Proportional to 133,168.96, 199,732.96 and 39,659.84

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Solution

The fourth proportional to 133,168.96, 199,732.96 and 39,659.84 is: 59,483.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,168.96 : 199,732.96 = 39,659.84 : x
  2. Step 2: Convert to fraction form
    133,168.96/199,732.96 = 39,659.84/x
  3. Step 3: Cross multiply
    133,168.96x = 199,732.96 × 39,659.84
  4. Step 4: Simplify right side
    133,168.96x = 7,921,377,236.33
  5. Step 5: Solve for x
    x = 7,921,377,236.33/133,168.96
  6. Step 6: Final answer
    x = 59,483.66

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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.