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Finding the Fourth Proportional to 175,912.40, 263,371.80 and 136,924.40

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Solution

The fourth proportional to 175,912.40, 263,371.80 and 136,924.40 is: 204,999.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    175,912.40 : 263,371.80 = 136,924.40 : x
  2. Step 2: Convert to fraction form
    175,912.40/263,371.80 = 136,924.40/x
  3. Step 3: Cross multiply
    175,912.40x = 263,371.80 × 136,924.40
  4. Step 4: Simplify right side
    175,912.40x = 36,062,025,691.92
  5. Step 5: Solve for x
    x = 36,062,025,691.92/175,912.40
  6. Step 6: Final answer
    x = 204,999.91

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.