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Finding the Fourth Proportional to 203,510.88, 280,843.20 and 114,086.88

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Solution

The fourth proportional to 203,510.88, 280,843.20 and 114,086.88 is: 157,438.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,510.88 : 280,843.20 = 114,086.88 : x
  2. Step 2: Convert to fraction form
    203,510.88/280,843.20 = 114,086.88/x
  3. Step 3: Cross multiply
    203,510.88x = 280,843.20 × 114,086.88
  4. Step 4: Simplify right side
    203,510.88x = 32,040,524,457.22
  5. Step 5: Solve for x
    x = 32,040,524,457.22/203,510.88
  6. Step 6: Final answer
    x = 157,438.88

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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.