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Finding the Fourth Proportional to 68,690.70, 103,048.20 and 24,343.20

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Solution

The fourth proportional to 68,690.70, 103,048.20 and 24,343.20 is: 36,519.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,690.70 : 103,048.20 = 24,343.20 : x
  2. Step 2: Convert to fraction form
    68,690.70/103,048.20 = 24,343.20/x
  3. Step 3: Cross multiply
    68,690.70x = 103,048.20 × 24,343.20
  4. Step 4: Simplify right side
    68,690.70x = 2,508,522,942.24
  5. Step 5: Solve for x
    x = 2,508,522,942.24/68,690.70
  6. Step 6: Final answer
    x = 36,519.11

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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.