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Finding the Fourth Proportional to 194,663.50, 268,636.37 and 108,626.11

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Solution

The fourth proportional to 194,663.50, 268,636.37 and 108,626.11 is: 149,904.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    194,663.50 : 268,636.37 = 108,626.11 : x
  2. Step 2: Convert to fraction form
    194,663.50/268,636.37 = 108,626.11/x
  3. Step 3: Cross multiply
    194,663.50x = 268,636.37 × 108,626.11
  4. Step 4: Simplify right side
    194,663.50x = 29,180,922,662.90
  5. Step 5: Solve for x
    x = 29,180,922,662.90/194,663.50
  6. Step 6: Final answer
    x = 149,904.44

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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.