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Finding the Fourth Proportional to 368,067.78, 551,708.00 and 168,088.50

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Solution

The fourth proportional to 368,067.78, 551,708.00 and 168,088.50 is: 251,952.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    368,067.78 : 551,708.00 = 168,088.50 : x
  2. Step 2: Convert to fraction form
    368,067.78/551,708.00 = 168,088.50/x
  3. Step 3: Cross multiply
    368,067.78x = 551,708.00 × 168,088.50
  4. Step 4: Simplify right side
    368,067.78x = 92,735,770,578.22
  5. Step 5: Solve for x
    x = 92,735,770,578.22/368,067.78
  6. Step 6: Final answer
    x = 251,952.97

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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.