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Finding the Fourth Proportional to 159,234.46, 219,745.20 and 91,249.94

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Solution

The fourth proportional to 159,234.46, 219,745.20 and 91,249.94 is: 125,925.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,234.46 : 219,745.20 = 91,249.94 : x
  2. Step 2: Convert to fraction form
    159,234.46/219,745.20 = 91,249.94/x
  3. Step 3: Cross multiply
    159,234.46x = 219,745.20 × 91,249.94
  4. Step 4: Simplify right side
    159,234.46x = 20,051,737,206.84
  5. Step 5: Solve for x
    x = 20,051,737,206.84/159,234.46
  6. Step 6: Final answer
    x = 125,925.87

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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.