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Finding the Fourth Proportional to 68,689.95, 103,015.89 and 24,310.86

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Solution

The fourth proportional to 68,689.95, 103,015.89 and 24,310.86 is: 36,459.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,689.95 : 103,015.89 = 24,310.86 : x
  2. Step 2: Convert to fraction form
    68,689.95/103,015.89 = 24,310.86/x
  3. Step 3: Cross multiply
    68,689.95x = 103,015.89 × 24,310.86
  4. Step 4: Simplify right side
    68,689.95x = 2,504,404,879.57
  5. Step 5: Solve for x
    x = 2,504,404,879.57/68,689.95
  6. Step 6: Final answer
    x = 36,459.55

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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.