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Finding the Fourth Proportional to 217,883.32, 326,843.81 and 60,111.77

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Solution

The fourth proportional to 217,883.32, 326,843.81 and 60,111.77 is: 90,172.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    217,883.32 : 326,843.81 = 60,111.77 : x
  2. Step 2: Convert to fraction form
    217,883.32/326,843.81 = 60,111.77/x
  3. Step 3: Cross multiply
    217,883.32x = 326,843.81 × 60,111.77
  4. Step 4: Simplify right side
    217,883.32x = 19,647,160,449.19
  5. Step 5: Solve for x
    x = 19,647,160,449.19/217,883.32
  6. Step 6: Final answer
    x = 90,172.85

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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.