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Finding the Fourth Proportional to 89,863.62, 134,772.30 and 26,668.77

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Solution

The fourth proportional to 89,863.62, 134,772.30 and 26,668.77 is: 39,996.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,863.62 : 134,772.30 = 26,668.77 : x
  2. Step 2: Convert to fraction form
    89,863.62/134,772.30 = 26,668.77/x
  3. Step 3: Cross multiply
    89,863.62x = 134,772.30 × 26,668.77
  4. Step 4: Simplify right side
    89,863.62x = 3,594,211,471.07
  5. Step 5: Solve for x
    x = 3,594,211,471.07/89,863.62
  6. Step 6: Final answer
    x = 39,996.29

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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.