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Finding the Fourth Proportional to 68,796.24, 103,194.48 and 18,877.02

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Solution

The fourth proportional to 68,796.24, 103,194.48 and 18,877.02 is: 28,315.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,796.24 : 103,194.48 = 18,877.02 : x
  2. Step 2: Convert to fraction form
    68,796.24/103,194.48 = 18,877.02/x
  3. Step 3: Cross multiply
    68,796.24x = 103,194.48 × 18,877.02
  4. Step 4: Simplify right side
    68,796.24x = 1,948,004,262.85
  5. Step 5: Solve for x
    x = 1,948,004,262.85/68,796.24
  6. Step 6: Final answer
    x = 28,315.56

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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.