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Finding the Fourth Proportional to 399,093.17, 598,738.17 and 118,610.42

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Solution

The fourth proportional to 399,093.17, 598,738.17 and 118,610.42 is: 177,944.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    399,093.17 : 598,738.17 = 118,610.42 : x
  2. Step 2: Convert to fraction form
    399,093.17/598,738.17 = 118,610.42/x
  3. Step 3: Cross multiply
    399,093.17x = 598,738.17 × 118,610.42
  4. Step 4: Simplify right side
    399,093.17x = 71,016,585,813.73
  5. Step 5: Solve for x
    x = 71,016,585,813.73/399,093.17
  6. Step 6: Final answer
    x = 177,944.88

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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.