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Finding the Fourth Proportional to 68,385.94, 102,556.76 and 22,781.54

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Solution

The fourth proportional to 68,385.94, 102,556.76 and 22,781.54 is: 34,164.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,385.94 : 102,556.76 = 22,781.54 : x
  2. Step 2: Convert to fraction form
    68,385.94/102,556.76 = 22,781.54/x
  3. Step 3: Cross multiply
    68,385.94x = 102,556.76 × 22,781.54
  4. Step 4: Simplify right side
    68,385.94x = 2,336,400,930.21
  5. Step 5: Solve for x
    x = 2,336,400,930.21/68,385.94
  6. Step 6: Final answer
    x = 34,164.93

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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.