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Finding the Fourth Proportional to 68,817.78, 103,236.93 and 24,440.81

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Solution

The fourth proportional to 68,817.78, 103,236.93 and 24,440.81 is: 36,664.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,817.78 : 103,236.93 = 24,440.81 : x
  2. Step 2: Convert to fraction form
    68,817.78/103,236.93 = 24,440.81/x
  3. Step 3: Cross multiply
    68,817.78x = 103,236.93 × 24,440.81
  4. Step 4: Simplify right side
    68,817.78x = 2,523,193,674.93
  5. Step 5: Solve for x
    x = 2,523,193,674.93/68,817.78
  6. Step 6: Final answer
    x = 36,664.85

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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.