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Finding the Fourth Proportional to 106,452.69, 146,906.84 and 68,792.55

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Solution

The fourth proportional to 106,452.69, 146,906.84 and 68,792.55 is: 94,935.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    106,452.69 : 146,906.84 = 68,792.55 : x
  2. Step 2: Convert to fraction form
    106,452.69/146,906.84 = 68,792.55/x
  3. Step 3: Cross multiply
    106,452.69x = 146,906.84 × 68,792.55
  4. Step 4: Simplify right side
    106,452.69x = 10,106,096,136.04
  5. Step 5: Solve for x
    x = 10,106,096,136.04/106,452.69
  6. Step 6: Final answer
    x = 94,935.09

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.