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Finding the Fourth Proportional to 68,609.76, 102,915.46 and 24,205.36

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Solution

The fourth proportional to 68,609.76, 102,915.46 and 24,205.36 is: 36,308.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,609.76 : 102,915.46 = 24,205.36 : x
  2. Step 2: Convert to fraction form
    68,609.76/102,915.46 = 24,205.36/x
  3. Step 3: Cross multiply
    68,609.76x = 102,915.46 × 24,205.36
  4. Step 4: Simplify right side
    68,609.76x = 2,491,105,758.87
  5. Step 5: Solve for x
    x = 2,491,105,758.87/68,609.76
  6. Step 6: Final answer
    x = 36,308.33

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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.