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Finding the Fourth Proportional to 109,243.62, 150,770.57 and 61,506.27

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Solution

The fourth proportional to 109,243.62, 150,770.57 and 61,506.27 is: 84,886.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,243.62 : 150,770.57 = 61,506.27 : x
  2. Step 2: Convert to fraction form
    109,243.62/150,770.57 = 61,506.27/x
  3. Step 3: Cross multiply
    109,243.62x = 150,770.57 × 61,506.27
  4. Step 4: Simplify right side
    109,243.62x = 9,273,335,078.94
  5. Step 5: Solve for x
    x = 9,273,335,078.94/109,243.62
  6. Step 6: Final answer
    x = 84,886.74

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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.