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Finding the Fourth Proportional to 383,261.31, 574,961.22 and 158,499.68

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Solution

The fourth proportional to 383,261.31, 574,961.22 and 158,499.68 is: 237,778.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    383,261.31 : 574,961.22 = 158,499.68 : x
  2. Step 2: Convert to fraction form
    383,261.31/574,961.22 = 158,499.68/x
  3. Step 3: Cross multiply
    383,261.31x = 574,961.22 × 158,499.68
  4. Step 4: Simplify right side
    383,261.31x = 91,131,166,507.60
  5. Step 5: Solve for x
    x = 91,131,166,507.60/383,261.31
  6. Step 6: Final answer
    x = 237,778.15

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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.