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Finding the Fourth Proportional to 351,062.30, 526,273.56 and 126,369.92

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Solution

The fourth proportional to 351,062.30, 526,273.56 and 126,369.92 is: 189,439.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    351,062.30 : 526,273.56 = 126,369.92 : x
  2. Step 2: Convert to fraction form
    351,062.30/526,273.56 = 126,369.92/x
  3. Step 3: Cross multiply
    351,062.30x = 526,273.56 × 126,369.92
  4. Step 4: Simplify right side
    351,062.30x = 66,505,145,043.95
  5. Step 5: Solve for x
    x = 66,505,145,043.95/351,062.30
  6. Step 6: Final answer
    x = 189,439.73

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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.