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Finding the Fourth Proportional to 551,361.20, 827,185.80 and 177,393.20

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Solution

The fourth proportional to 551,361.20, 827,185.80 and 177,393.20 is: 266,136.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    551,361.20 : 827,185.80 = 177,393.20 : x
  2. Step 2: Convert to fraction form
    551,361.20/827,185.80 = 177,393.20/x
  3. Step 3: Cross multiply
    551,361.20x = 827,185.80 × 177,393.20
  4. Step 4: Simplify right side
    551,361.20x = 146,737,136,056.56
  5. Step 5: Solve for x
    x = 146,737,136,056.56/551,361.20
  6. Step 6: Final answer
    x = 266,136.13

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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.