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Finding the Fourth Proportional to 68,851.85, 103,194.72 and 35,553.76

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Solution

The fourth proportional to 68,851.85, 103,194.72 and 35,553.76 is: 53,287.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,851.85 : 103,194.72 = 35,553.76 : x
  2. Step 2: Convert to fraction form
    68,851.85/103,194.72 = 35,553.76/x
  3. Step 3: Cross multiply
    68,851.85x = 103,194.72 × 35,553.76
  4. Step 4: Simplify right side
    68,851.85x = 3,668,960,183.49
  5. Step 5: Solve for x
    x = 3,668,960,183.49/68,851.85
  6. Step 6: Final answer
    x = 53,287.75

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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.