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Finding the Fourth Proportional to 192,129.28, 265,137.37 and 111,576.59

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Solution

The fourth proportional to 192,129.28, 265,137.37 and 111,576.59 is: 153,975.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    192,129.28 : 265,137.37 = 111,576.59 : x
  2. Step 2: Convert to fraction form
    192,129.28/265,137.37 = 111,576.59/x
  3. Step 3: Cross multiply
    192,129.28x = 265,137.37 × 111,576.59
  4. Step 4: Simplify right side
    192,129.28x = 29,583,123,626.17
  5. Step 5: Solve for x
    x = 29,583,123,626.17/192,129.28
  6. Step 6: Final answer
    x = 153,975.09

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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.