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Finding the Fourth Proportional to 275,789.06, 380,576.85 and 168,538.58

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Solution

The fourth proportional to 275,789.06, 380,576.85 and 168,538.58 is: 232,575.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    275,789.06 : 380,576.85 = 168,538.58 : x
  2. Step 2: Convert to fraction form
    275,789.06/380,576.85 = 168,538.58/x
  3. Step 3: Cross multiply
    275,789.06x = 380,576.85 × 168,538.58
  4. Step 4: Simplify right side
    275,789.06x = 64,141,881,879.87
  5. Step 5: Solve for x
    x = 64,141,881,879.87/275,789.06
  6. Step 6: Final answer
    x = 232,575.87

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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.