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Finding the Fourth Proportional to 203,883.90, 305,874.45 and 98,616.30

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Solution

The fourth proportional to 203,883.90, 305,874.45 and 98,616.30 is: 147,947.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,883.90 : 305,874.45 = 98,616.30 : x
  2. Step 2: Convert to fraction form
    203,883.90/305,874.45 = 98,616.30/x
  3. Step 3: Cross multiply
    203,883.90x = 305,874.45 × 98,616.30
  4. Step 4: Simplify right side
    203,883.90x = 30,164,206,523.54
  5. Step 5: Solve for x
    x = 30,164,206,523.54/203,883.90
  6. Step 6: Final answer
    x = 147,947.96

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1.5x scale

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.