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Finding the Fourth Proportional to 325,850.40, 488,751.30 and 136,261.80

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Solution

The fourth proportional to 325,850.40, 488,751.30 and 136,261.80 is: 204,382.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    325,850.40 : 488,751.30 = 136,261.80 : x
  2. Step 2: Convert to fraction form
    325,850.40/488,751.30 = 136,261.80/x
  3. Step 3: Cross multiply
    325,850.40x = 488,751.30 × 136,261.80
  4. Step 4: Simplify right side
    325,850.40x = 66,598,131,890.34
  5. Step 5: Solve for x
    x = 66,598,131,890.34/325,850.40
  6. Step 6: Final answer
    x = 204,382.54

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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.