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Finding the Fourth Proportional to 339,039, 467,895.69 and 188,136

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Solution

The fourth proportional to 339,039, 467,895.69 and 188,136 is: 259,639.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    339,039 : 467,895.69 = 188,136 : x
  2. Step 2: Convert to fraction form
    339,039/467,895.69 = 188,136/x
  3. Step 3: Cross multiply
    339,039x = 467,895.69 × 188,136
  4. Step 4: Simplify right side
    339,039x = 88,028,023,533.84
  5. Step 5: Solve for x
    x = 88,028,023,533.84/339,039
  6. Step 6: Final answer
    x = 259,639.82

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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.