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Finding the Fourth Proportional to 307,939.44, 424,863.56 and 178,853.02

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Solution

The fourth proportional to 307,939.44, 424,863.56 and 178,853.02 is: 246,763.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    307,939.44 : 424,863.56 = 178,853.02 : x
  2. Step 2: Convert to fraction form
    307,939.44/424,863.56 = 178,853.02/x
  3. Step 3: Cross multiply
    307,939.44x = 424,863.56 × 178,853.02
  4. Step 4: Simplify right side
    307,939.44x = 75,988,130,793.95
  5. Step 5: Solve for x
    x = 75,988,130,793.95/307,939.44
  6. Step 6: Final answer
    x = 246,763.23

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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.