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Finding the Fourth Proportional to 178,843.20, 268,264.80 and 149,974.80

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Solution

The fourth proportional to 178,843.20, 268,264.80 and 149,974.80 is: 224,962.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    178,843.20 : 268,264.80 = 149,974.80 : x
  2. Step 2: Convert to fraction form
    178,843.20/268,264.80 = 149,974.80/x
  3. Step 3: Cross multiply
    178,843.20x = 268,264.80 × 149,974.80
  4. Step 4: Simplify right side
    178,843.20x = 40,232,959,727.04
  5. Step 5: Solve for x
    x = 40,232,959,727.04/178,843.20
  6. Step 6: Final answer
    x = 224,962.20

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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.