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Finding the Fourth Proportional to 68,680.91, 103,021.64 and 24,307.67

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Solution

The fourth proportional to 68,680.91, 103,021.64 and 24,307.67 is: 36,461.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,680.91 : 103,021.64 = 24,307.67 : x
  2. Step 2: Convert to fraction form
    68,680.91/103,021.64 = 24,307.67/x
  3. Step 3: Cross multiply
    68,680.91x = 103,021.64 × 24,307.67
  4. Step 4: Simplify right side
    68,680.91x = 2,504,215,906.44
  5. Step 5: Solve for x
    x = 2,504,215,906.44/68,680.91
  6. Step 6: Final answer
    x = 36,461.60

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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.