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Finding the Fourth Proportional to 399,092.17, 598,736.67 and 118,609.42

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Solution

The fourth proportional to 399,092.17, 598,736.67 and 118,609.42 is: 177,943.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    399,092.17 : 598,736.67 = 118,609.42 : x
  2. Step 2: Convert to fraction form
    399,092.17/598,736.67 = 118,609.42/x
  3. Step 3: Cross multiply
    399,092.17x = 598,736.67 × 118,609.42
  4. Step 4: Simplify right side
    399,092.17x = 71,015,809,161.43
  5. Step 5: Solve for x
    x = 71,015,809,161.43/399,092.17
  6. Step 6: Final answer
    x = 177,943.38

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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.