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Finding the Fourth Proportional to 570,542.82, 855,617.10 and 165,625.21

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Solution

The fourth proportional to 570,542.82, 855,617.10 and 165,625.21 is: 248,380.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    570,542.82 : 855,617.10 = 165,625.21 : x
  2. Step 2: Convert to fraction form
    570,542.82/855,617.10 = 165,625.21/x
  3. Step 3: Cross multiply
    570,542.82x = 855,617.10 × 165,625.21
  4. Step 4: Simplify right side
    570,542.82x = 141,711,761,867.09
  5. Step 5: Solve for x
    x = 141,711,761,867.09/570,542.82
  6. Step 6: Final answer
    x = 248,380.59

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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.