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Finding the Fourth Proportional to 192,670.98, 265,942.81 and 112,134.30

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Solution

The fourth proportional to 192,670.98, 265,942.81 and 112,134.30 is: 154,778.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    192,670.98 : 265,942.81 = 112,134.30 : x
  2. Step 2: Convert to fraction form
    192,670.98/265,942.81 = 112,134.30/x
  3. Step 3: Cross multiply
    192,670.98x = 265,942.81 × 112,134.30
  4. Step 4: Simplify right side
    192,670.98x = 29,821,310,839.38
  5. Step 5: Solve for x
    x = 29,821,310,839.38/192,670.98
  6. Step 6: Final answer
    x = 154,778.43

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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.