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Finding the Fourth Proportional to 159,732.72, 239,573.69 and 53,107.81

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Solution

The fourth proportional to 159,732.72, 239,573.69 and 53,107.81 is: 79,653.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,732.72 : 239,573.69 = 53,107.81 : x
  2. Step 2: Convert to fraction form
    159,732.72/239,573.69 = 53,107.81/x
  3. Step 3: Cross multiply
    159,732.72x = 239,573.69 × 53,107.81
  4. Step 4: Simplify right side
    159,732.72x = 12,723,234,142.29
  5. Step 5: Solve for x
    x = 12,723,234,142.29/159,732.72
  6. Step 6: Final answer
    x = 79,653.27

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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.