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Finding the Fourth Proportional to 159,730.73, 239,570.69 and 53,105.81

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Solution

The fourth proportional to 159,730.73, 239,570.69 and 53,105.81 is: 79,650.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,730.73 : 239,570.69 = 53,105.81 : x
  2. Step 2: Convert to fraction form
    159,730.73/239,570.69 = 53,105.81/x
  3. Step 3: Cross multiply
    159,730.73x = 239,570.69 × 53,105.81
  4. Step 4: Simplify right side
    159,730.73x = 12,722,595,544.71
  5. Step 5: Solve for x
    x = 12,722,595,544.71/159,730.73
  6. Step 6: Final answer
    x = 79,650.27

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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.