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Finding the Fourth Proportional to 356,789.25, 492,384.11 and 195,650.51

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Solution

The fourth proportional to 356,789.25, 492,384.11 and 195,650.51 is: 270,005.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    356,789.25 : 492,384.11 = 195,650.51 : x
  2. Step 2: Convert to fraction form
    356,789.25/492,384.11 = 195,650.51/x
  3. Step 3: Cross multiply
    356,789.25x = 492,384.11 × 195,650.51
  4. Step 4: Simplify right side
    356,789.25x = 96,335,198,797.22
  5. Step 5: Solve for x
    x = 96,335,198,797.22/356,789.25
  6. Step 6: Final answer
    x = 270,005.89

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.