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Finding the Fourth Proportional to 159,193, 219,671.94 and 87,576.04

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Solution

The fourth proportional to 159,193, 219,671.94 and 87,576.04 is: 120,847.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,193 : 219,671.94 = 87,576.04 : x
  2. Step 2: Convert to fraction form
    159,193/219,671.94 = 87,576.04/x
  3. Step 3: Cross multiply
    159,193x = 219,671.94 × 87,576.04
  4. Step 4: Simplify right side
    159,193x = 19,237,998,604.32
  5. Step 5: Solve for x
    x = 19,237,998,604.32/159,193
  6. Step 6: Final answer
    x = 120,847.01

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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.