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Finding the Fourth Proportional to 148,033.50, 204,291.09 and 80,965.50

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Solution

The fourth proportional to 148,033.50, 204,291.09 and 80,965.50 is: 111,735.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    148,033.50 : 204,291.09 = 80,965.50 : x
  2. Step 2: Convert to fraction form
    148,033.50/204,291.09 = 80,965.50/x
  3. Step 3: Cross multiply
    148,033.50x = 204,291.09 × 80,965.50
  4. Step 4: Simplify right side
    148,033.50x = 16,540,530,247.40
  5. Step 5: Solve for x
    x = 16,540,530,247.40/148,033.50
  6. Step 6: Final answer
    x = 111,735.05

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.