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Finding the Fourth Proportional to 204,496.80, 306,745.20 and 141,511.20

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Solution

The fourth proportional to 204,496.80, 306,745.20 and 141,511.20 is: 212,266.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    204,496.80 : 306,745.20 = 141,511.20 : x
  2. Step 2: Convert to fraction form
    204,496.80/306,745.20 = 141,511.20/x
  3. Step 3: Cross multiply
    204,496.80x = 306,745.20 × 141,511.20
  4. Step 4: Simplify right side
    204,496.80x = 43,407,881,346.24
  5. Step 5: Solve for x
    x = 43,407,881,346.24/204,496.80
  6. Step 6: Final answer
    x = 212,266.80

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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.