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Finding the Fourth Proportional to 539,272.32, 809,026.56 and 165,324.48

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Solution

The fourth proportional to 539,272.32, 809,026.56 and 165,324.48 is: 248,022.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    539,272.32 : 809,026.56 = 165,324.48 : x
  2. Step 2: Convert to fraction form
    539,272.32/809,026.56 = 165,324.48/x
  3. Step 3: Cross multiply
    539,272.32x = 809,026.56 × 165,324.48
  4. Step 4: Simplify right side
    539,272.32x = 133,751,895,338.19
  5. Step 5: Solve for x
    x = 133,751,895,338.19/539,272.32
  6. Step 6: Final answer
    x = 248,022.92

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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.