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Finding the Fourth Proportional to 331,797.33, 457,879.50 and 188,557.20

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Solution

The fourth proportional to 331,797.33, 457,879.50 and 188,557.20 is: 260,208.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    331,797.33 : 457,879.50 = 188,557.20 : x
  2. Step 2: Convert to fraction form
    331,797.33/457,879.50 = 188,557.20/x
  3. Step 3: Cross multiply
    331,797.33x = 457,879.50 × 188,557.20
  4. Step 4: Simplify right side
    331,797.33x = 86,336,476,457.40
  5. Step 5: Solve for x
    x = 86,336,476,457.40/331,797.33
  6. Step 6: Final answer
    x = 260,208.47

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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.