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Finding the Fourth Proportional to 251,481.54, 347,045.94 and 136,761.52

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Solution

The fourth proportional to 251,481.54, 347,045.94 and 136,761.52 is: 188,731.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    251,481.54 : 347,045.94 = 136,761.52 : x
  2. Step 2: Convert to fraction form
    251,481.54/347,045.94 = 136,761.52/x
  3. Step 3: Cross multiply
    251,481.54x = 347,045.94 × 136,761.52
  4. Step 4: Simplify right side
    251,481.54x = 47,462,530,264.23
  5. Step 5: Solve for x
    x = 47,462,530,264.23/251,481.54
  6. Step 6: Final answer
    x = 188,731.67

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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.