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Finding the Fourth Proportional to 338,931.37, 467,725.85 and 188,028.37

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Solution

The fourth proportional to 338,931.37, 467,725.85 and 188,028.37 is: 259,479.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    338,931.37 : 467,725.85 = 188,028.37 : x
  2. Step 2: Convert to fraction form
    338,931.37/467,725.85 = 188,028.37/x
  3. Step 3: Cross multiply
    338,931.37x = 467,725.85 × 188,028.37
  4. Step 4: Simplify right side
    338,931.37x = 87,945,728,242.22
  5. Step 5: Solve for x
    x = 87,945,728,242.22/338,931.37
  6. Step 6: Final answer
    x = 259,479.46

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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.