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Finding the Fourth Proportional to 68,858.68, 103,256.85 and 24,486.61

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Solution

The fourth proportional to 68,858.68, 103,256.85 and 24,486.61 is: 36,718.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,858.68 : 103,256.85 = 24,486.61 : x
  2. Step 2: Convert to fraction form
    68,858.68/103,256.85 = 24,486.61/x
  3. Step 3: Cross multiply
    68,858.68x = 103,256.85 × 24,486.61
  4. Step 4: Simplify right side
    68,858.68x = 2,528,410,215.78
  5. Step 5: Solve for x
    x = 2,528,410,215.78/68,858.68
  6. Step 6: Final answer
    x = 36,718.83

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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.