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Finding the Fourth Proportional to 311,866.94, 467,850.90 and 122,224.50

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Solution

The fourth proportional to 311,866.94, 467,850.90 and 122,224.50 is: 183,356.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    311,866.94 : 467,850.90 = 122,224.50 : x
  2. Step 2: Convert to fraction form
    311,866.94/467,850.90 = 122,224.50/x
  3. Step 3: Cross multiply
    311,866.94x = 467,850.90 × 122,224.50
  4. Step 4: Simplify right side
    311,866.94x = 57,182,842,327.05
  5. Step 5: Solve for x
    x = 57,182,842,327.05/311,866.94
  6. Step 6: Final answer
    x = 183,356.54

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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.