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Finding the Fourth Proportional to 159,662.61, 239,424.39 and 45,785.31

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Solution

The fourth proportional to 159,662.61, 239,424.39 and 45,785.31 is: 68,658.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,662.61 : 239,424.39 = 45,785.31 : x
  2. Step 2: Convert to fraction form
    159,662.61/239,424.39 = 45,785.31/x
  3. Step 3: Cross multiply
    159,662.61x = 239,424.39 × 45,785.31
  4. Step 4: Simplify right side
    159,662.61x = 10,962,119,917.71
  5. Step 5: Solve for x
    x = 10,962,119,917.71/159,662.61
  6. Step 6: Final answer
    x = 68,658.03

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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.