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Finding the Fourth Proportional to 159,491.72, 239,166.49 and 84,594.82

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Solution

The fourth proportional to 159,491.72, 239,166.49 and 84,594.82 is: 126,854.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,491.72 : 239,166.49 = 84,594.82 : x
  2. Step 2: Convert to fraction form
    159,491.72/239,166.49 = 84,594.82/x
  3. Step 3: Cross multiply
    159,491.72x = 239,166.49 × 84,594.82
  4. Step 4: Simplify right side
    159,491.72x = 20,232,246,171.58
  5. Step 5: Solve for x
    x = 20,232,246,171.58/159,491.72
  6. Step 6: Final answer
    x = 126,854.52

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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.