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Finding the Fourth Proportional to 159,632.52, 220,286.04 and 87,033.84

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Solution

The fourth proportional to 159,632.52, 220,286.04 and 87,033.84 is: 120,102.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,632.52 : 220,286.04 = 87,033.84 : x
  2. Step 2: Convert to fraction form
    159,632.52/220,286.04 = 87,033.84/x
  3. Step 3: Cross multiply
    159,632.52x = 220,286.04 × 87,033.84
  4. Step 4: Simplify right side
    159,632.52x = 19,172,339,959.59
  5. Step 5: Solve for x
    x = 19,172,339,959.59/159,632.52
  6. Step 6: Final answer
    x = 120,102.97

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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.