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Finding the Fourth Proportional to 69,883.81, 104,831.19 and 23,136.69

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Solution

The fourth proportional to 69,883.81, 104,831.19 and 23,136.69 is: 34,706.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,883.81 : 104,831.19 = 23,136.69 : x
  2. Step 2: Convert to fraction form
    69,883.81/104,831.19 = 23,136.69/x
  3. Step 3: Cross multiply
    69,883.81x = 104,831.19 × 23,136.69
  4. Step 4: Simplify right side
    69,883.81x = 2,425,446,745.36
  5. Step 5: Solve for x
    x = 2,425,446,745.36/69,883.81
  6. Step 6: Final answer
    x = 34,706.85

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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.