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Finding the Fourth Proportional to 539,736.72, 809,463.78 and 160,555.37

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Solution

The fourth proportional to 539,736.72, 809,463.78 and 160,555.37 is: 240,791.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    539,736.72 : 809,463.78 = 160,555.37 : x
  2. Step 2: Convert to fraction form
    539,736.72/809,463.78 = 160,555.37/x
  3. Step 3: Cross multiply
    539,736.72x = 809,463.78 × 160,555.37
  4. Step 4: Simplify right side
    539,736.72x = 129,963,752,652.18
  5. Step 5: Solve for x
    x = 129,963,752,652.18/539,736.72
  6. Step 6: Final answer
    x = 240,791.02

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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.