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Finding the Fourth Proportional to 399,164.22, 598,771.17 and 132,948.54

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Solution

The fourth proportional to 399,164.22, 598,771.17 and 132,948.54 is: 199,431.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    399,164.22 : 598,771.17 = 132,948.54 : x
  2. Step 2: Convert to fraction form
    399,164.22/598,771.17 = 132,948.54/x
  3. Step 3: Cross multiply
    399,164.22x = 598,771.17 × 132,948.54
  4. Step 4: Simplify right side
    399,164.22x = 79,605,752,845.59
  5. Step 5: Solve for x
    x = 79,605,752,845.59/399,164.22
  6. Step 6: Final answer
    x = 199,431.08

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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.