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Finding the Fourth Proportional to 68,841.36, 103,267.17 and 35,540.64

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Solution

The fourth proportional to 68,841.36, 103,267.17 and 35,540.64 is: 53,313.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,841.36 : 103,267.17 = 35,540.64 : x
  2. Step 2: Convert to fraction form
    68,841.36/103,267.17 = 35,540.64/x
  3. Step 3: Cross multiply
    68,841.36x = 103,267.17 × 35,540.64
  4. Step 4: Simplify right side
    68,841.36x = 3,670,181,312.79
  5. Step 5: Solve for x
    x = 3,670,181,312.79/68,841.36
  6. Step 6: Final answer
    x = 53,313.61

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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.