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Finding the Fourth Proportional to 194,687.38, 268,668.21 and 109,804.18

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Solution

The fourth proportional to 194,687.38, 268,668.21 and 109,804.18 is: 151,529.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    194,687.38 : 268,668.21 = 109,804.18 : x
  2. Step 2: Convert to fraction form
    194,687.38/268,668.21 = 109,804.18/x
  3. Step 3: Cross multiply
    194,687.38x = 268,668.21 × 109,804.18
  4. Step 4: Simplify right side
    194,687.38x = 29,500,892,491.12
  5. Step 5: Solve for x
    x = 29,500,892,491.12/194,687.38
  6. Step 6: Final answer
    x = 151,529.56

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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.