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Finding the Fourth Proportional to 113,872.70, 170,813.10 and 34,986.80

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Solution

The fourth proportional to 113,872.70, 170,813.10 and 34,986.80 is: 52,481.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,872.70 : 170,813.10 = 34,986.80 : x
  2. Step 2: Convert to fraction form
    113,872.70/170,813.10 = 34,986.80/x
  3. Step 3: Cross multiply
    113,872.70x = 170,813.10 × 34,986.80
  4. Step 4: Simplify right side
    113,872.70x = 5,976,203,767.08
  5. Step 5: Solve for x
    x = 5,976,203,767.08/113,872.70
  6. Step 6: Final answer
    x = 52,481.44

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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.