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Finding the Fourth Proportional to 69,136.91, 103,767.18 and 35,425.92

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Solution

The fourth proportional to 69,136.91, 103,767.18 and 35,425.92 is: 53,170.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,136.91 : 103,767.18 = 35,425.92 : x
  2. Step 2: Convert to fraction form
    69,136.91/103,767.18 = 35,425.92/x
  3. Step 3: Cross multiply
    69,136.91x = 103,767.18 × 35,425.92
  4. Step 4: Simplify right side
    69,136.91x = 3,676,048,073.59
  5. Step 5: Solve for x
    x = 3,676,048,073.59/69,136.91
  6. Step 6: Final answer
    x = 53,170.56

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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.