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Finding the Fourth Proportional to 192,379.31, 265,653.66 and 119,905.89

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Solution

The fourth proportional to 192,379.31, 265,653.66 and 119,905.89 is: 165,576.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    192,379.31 : 265,653.66 = 119,905.89 : x
  2. Step 2: Convert to fraction form
    192,379.31/265,653.66 = 119,905.89/x
  3. Step 3: Cross multiply
    192,379.31x = 265,653.66 × 119,905.89
  4. Step 4: Simplify right side
    192,379.31x = 31,853,438,534.06
  5. Step 5: Solve for x
    x = 31,853,438,534.06/192,379.31
  6. Step 6: Final answer
    x = 165,576.22

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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.