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Finding the Fourth Proportional to 192,031.80, 264,933.90 and 119,429.88

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Solution

The fourth proportional to 192,031.80, 264,933.90 and 119,429.88 is: 164,769.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    192,031.80 : 264,933.90 = 119,429.88 : x
  2. Step 2: Convert to fraction form
    192,031.80/264,933.90 = 119,429.88/x
  3. Step 3: Cross multiply
    192,031.80x = 264,933.90 × 119,429.88
  4. Step 4: Simplify right side
    192,031.80x = 31,641,023,884.93
  5. Step 5: Solve for x
    x = 31,641,023,884.93/192,031.80
  6. Step 6: Final answer
    x = 164,769.71

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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.