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Finding the Fourth Proportional to 203,033.28, 280,186.53 and 109,898.97

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Solution

The fourth proportional to 203,033.28, 280,186.53 and 109,898.97 is: 151,660.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,033.28 : 280,186.53 = 109,898.97 : x
  2. Step 2: Convert to fraction form
    203,033.28/280,186.53 = 109,898.97/x
  3. Step 3: Cross multiply
    203,033.28x = 280,186.53 × 109,898.97
  4. Step 4: Simplify right side
    203,033.28x = 30,792,211,054.87
  5. Step 5: Solve for x
    x = 30,792,211,054.87/203,033.28
  6. Step 6: Final answer
    x = 151,660.91

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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.