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Finding the Fourth Proportional to 379,114.76, 568,633.12 and 126,367.96

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Solution

The fourth proportional to 379,114.76, 568,633.12 and 126,367.96 is: 189,538.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    379,114.76 : 568,633.12 = 126,367.96 : x
  2. Step 2: Convert to fraction form
    379,114.76/568,633.12 = 126,367.96/x
  3. Step 3: Cross multiply
    379,114.76x = 568,633.12 × 126,367.96
  4. Step 4: Simplify right side
    379,114.76x = 71,857,007,362.84
  5. Step 5: Solve for x
    x = 71,857,007,362.84/379,114.76
  6. Step 6: Final answer
    x = 189,538.93

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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.