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Finding the Fourth Proportional to 382,755.50, 574,134.82 and 155,055.44

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Solution

The fourth proportional to 382,755.50, 574,134.82 and 155,055.44 is: 232,583.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    382,755.50 : 574,134.82 = 155,055.44 : x
  2. Step 2: Convert to fraction form
    382,755.50/574,134.82 = 155,055.44/x
  3. Step 3: Cross multiply
    382,755.50x = 574,134.82 × 155,055.44
  4. Step 4: Simplify right side
    382,755.50x = 89,022,727,134.42
  5. Step 5: Solve for x
    x = 89,022,727,134.42/382,755.50
  6. Step 6: Final answer
    x = 232,583.80

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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.