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Finding the Fourth Proportional to 268,571.22, 370,620.78 and 147,712.44

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Solution

The fourth proportional to 268,571.22, 370,620.78 and 147,712.44 is: 203,839.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    268,571.22 : 370,620.78 = 147,712.44 : x
  2. Step 2: Convert to fraction form
    268,571.22/370,620.78 = 147,712.44/x
  3. Step 3: Cross multiply
    268,571.22x = 370,620.78 × 147,712.44
  4. Step 4: Simplify right side
    268,571.22x = 54,745,299,728.50
  5. Step 5: Solve for x
    x = 54,745,299,728.50/268,571.22
  6. Step 6: Final answer
    x = 203,839.04

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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.