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Finding the Fourth Proportional to 68,798.76, 103,182.78 and 28,832.04

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Solution

The fourth proportional to 68,798.76, 103,182.78 and 28,832.04 is: 43,241.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,798.76 : 103,182.78 = 28,832.04 : x
  2. Step 2: Convert to fraction form
    68,798.76/103,182.78 = 28,832.04/x
  3. Step 3: Cross multiply
    68,798.76x = 103,182.78 × 28,832.04
  4. Step 4: Simplify right side
    68,798.76x = 2,974,970,040.27
  5. Step 5: Solve for x
    x = 2,974,970,040.27/68,798.76
  6. Step 6: Final answer
    x = 43,241.62

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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.