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Finding the Fourth Proportional to 539,672.73, 809,367.95 and 160,491.28

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Solution

The fourth proportional to 539,672.73, 809,367.95 and 160,491.28 is: 240,694.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    539,672.73 : 809,367.95 = 160,491.28 : x
  2. Step 2: Convert to fraction form
    539,672.73/809,367.95 = 160,491.28/x
  3. Step 3: Cross multiply
    539,672.73x = 809,367.95 × 160,491.28
  4. Step 4: Simplify right side
    539,672.73x = 129,896,496,664.28
  5. Step 5: Solve for x
    x = 129,896,496,664.28/539,672.73
  6. Step 6: Final answer
    x = 240,694.94

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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.