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Finding the Fourth Proportional to 106,452.18, 146,906.16 and 68,792.04

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Solution

The fourth proportional to 106,452.18, 146,906.16 and 68,792.04 is: 94,934.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    106,452.18 : 146,906.16 = 68,792.04 : x
  2. Step 2: Convert to fraction form
    106,452.18/146,906.16 = 68,792.04/x
  3. Step 3: Cross multiply
    106,452.18x = 146,906.16 × 68,792.04
  4. Step 4: Simplify right side
    106,452.18x = 10,105,974,434.97
  5. Step 5: Solve for x
    x = 10,105,974,434.97/106,452.18
  6. Step 6: Final answer
    x = 94,934.41

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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.