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Finding the Fourth Proportional to 99,912.52, 149,895.51 and 29,792.44

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Solution

The fourth proportional to 99,912.52, 149,895.51 and 29,792.44 is: 44,696.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,912.52 : 149,895.51 = 29,792.44 : x
  2. Step 2: Convert to fraction form
    99,912.52/149,895.51 = 29,792.44/x
  3. Step 3: Cross multiply
    99,912.52x = 149,895.51 × 29,792.44
  4. Step 4: Simplify right side
    99,912.52x = 4,465,752,987.94
  5. Step 5: Solve for x
    x = 4,465,752,987.94/99,912.52
  6. Step 6: Final answer
    x = 44,696.63

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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.