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Finding the Fourth Proportional to 327,101.76, 490,361.76 and 127,375.68

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Solution

The fourth proportional to 327,101.76, 490,361.76 and 127,375.68 is: 190,950.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    327,101.76 : 490,361.76 = 127,375.68 : x
  2. Step 2: Convert to fraction form
    327,101.76/490,361.76 = 127,375.68/x
  3. Step 3: Cross multiply
    327,101.76x = 490,361.76 × 127,375.68
  4. Step 4: Simplify right side
    327,101.76x = 62,460,162,626.00
  5. Step 5: Solve for x
    x = 62,460,162,626.00/327,101.76
  6. Step 6: Final answer
    x = 190,950.25

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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.