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Finding the Fourth Proportional to 239,505.76, 330,581.55 and 141,474.97

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Solution

The fourth proportional to 239,505.76, 330,581.55 and 141,474.97 is: 195,273.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    239,505.76 : 330,581.55 = 141,474.97 : x
  2. Step 2: Convert to fraction form
    239,505.76/330,581.55 = 141,474.97/x
  3. Step 3: Cross multiply
    239,505.76x = 330,581.55 × 141,474.97
  4. Step 4: Simplify right side
    239,505.76x = 46,769,014,868.80
  5. Step 5: Solve for x
    x = 46,769,014,868.80/239,505.76
  6. Step 6: Final answer
    x = 195,273.03

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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.