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Finding the Fourth Proportional to 275,991.53, 380,935.37 and 168,651.95

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Solution

The fourth proportional to 275,991.53, 380,935.37 and 168,651.95 is: 232,780.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    275,991.53 : 380,935.37 = 168,651.95 : x
  2. Step 2: Convert to fraction form
    275,991.53/380,935.37 = 168,651.95/x
  3. Step 3: Cross multiply
    275,991.53x = 380,935.37 × 168,651.95
  4. Step 4: Simplify right side
    275,991.53x = 64,245,491,491.42
  5. Step 5: Solve for x
    x = 64,245,491,491.42/275,991.53
  6. Step 6: Final answer
    x = 232,780.67

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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.