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Finding the Fourth Proportional to 159,994.38, 239,910.90 and 53,340.48

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Solution

The fourth proportional to 159,994.38, 239,910.90 and 53,340.48 is: 79,983.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,994.38 : 239,910.90 = 53,340.48 : x
  2. Step 2: Convert to fraction form
    159,994.38/239,910.90 = 53,340.48/x
  3. Step 3: Cross multiply
    159,994.38x = 239,910.90 × 53,340.48
  4. Step 4: Simplify right side
    159,994.38x = 12,796,962,563.23
  5. Step 5: Solve for x
    x = 12,796,962,563.23/159,994.38
  6. Step 6: Final answer
    x = 79,983.83

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.