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Finding the Fourth Proportional to 84,751.38, 127,168.38 and 34,846.47

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Solution

The fourth proportional to 84,751.38, 127,168.38 and 34,846.47 is: 52,286.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,751.38 : 127,168.38 = 34,846.47 : x
  2. Step 2: Convert to fraction form
    84,751.38/127,168.38 = 34,846.47/x
  3. Step 3: Cross multiply
    84,751.38x = 127,168.38 × 34,846.47
  4. Step 4: Simplify right side
    84,751.38x = 4,431,369,138.62
  5. Step 5: Solve for x
    x = 4,431,369,138.62/84,751.38
  6. Step 6: Final answer
    x = 52,286.69

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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.