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Finding the Fourth Proportional to 67,134.44, 100,690.72 and 22,760.21

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Solution

The fourth proportional to 67,134.44, 100,690.72 and 22,760.21 is: 34,136.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,134.44 : 100,690.72 = 22,760.21 : x
  2. Step 2: Convert to fraction form
    67,134.44/100,690.72 = 22,760.21/x
  3. Step 3: Cross multiply
    67,134.44x = 100,690.72 × 22,760.21
  4. Step 4: Simplify right side
    67,134.44x = 2,291,742,127.08
  5. Step 5: Solve for x
    x = 2,291,742,127.08/67,134.44
  6. Step 6: Final answer
    x = 34,136.61

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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.