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Finding the Fourth Proportional to 303,687.20, 455,725.20 and 177,327.20

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Solution

The fourth proportional to 303,687.20, 455,725.20 and 177,327.20 is: 266,104.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    303,687.20 : 455,725.20 = 177,327.20 : x
  2. Step 2: Convert to fraction form
    303,687.20/455,725.20 = 177,327.20/x
  3. Step 3: Cross multiply
    303,687.20x = 455,725.20 × 177,327.20
  4. Step 4: Simplify right side
    303,687.20x = 80,812,473,685.44
  5. Step 5: Solve for x
    x = 80,812,473,685.44/303,687.20
  6. Step 6: Final answer
    x = 266,104.31

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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.