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Finding the Fourth Proportional to 203,954.40, 305,672.40 and 98,546.40

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Solution

The fourth proportional to 203,954.40, 305,672.40 and 98,546.40 is: 147,694.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,954.40 : 305,672.40 = 98,546.40 : x
  2. Step 2: Convert to fraction form
    203,954.40/305,672.40 = 98,546.40/x
  3. Step 3: Cross multiply
    203,954.40x = 305,672.40 × 98,546.40
  4. Step 4: Simplify right side
    203,954.40x = 30,122,914,599.36
  5. Step 5: Solve for x
    x = 30,122,914,599.36/203,954.40
  6. Step 6: Final answer
    x = 147,694.36

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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.