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Finding the Fourth Proportional to 194,169.80, 267,816.29 and 129,606.48

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Solution

The fourth proportional to 194,169.80, 267,816.29 and 129,606.48 is: 178,764.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    194,169.80 : 267,816.29 = 129,606.48 : x
  2. Step 2: Convert to fraction form
    194,169.80/267,816.29 = 129,606.48/x
  3. Step 3: Cross multiply
    194,169.80x = 267,816.29 × 129,606.48
  4. Step 4: Simplify right side
    194,169.80x = 34,710,726,633.56
  5. Step 5: Solve for x
    x = 34,710,726,633.56/194,169.80
  6. Step 6: Final answer
    x = 178,764.81

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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.