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Finding the Fourth Proportional to 194,642.29, 268,616.96 and 108,620.29

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Solution

The fourth proportional to 194,642.29, 268,616.96 and 108,620.29 is: 149,901.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    194,642.29 : 268,616.96 = 108,620.29 : x
  2. Step 2: Convert to fraction form
    194,642.29/268,616.96 = 108,620.29/x
  3. Step 3: Cross multiply
    194,642.29x = 268,616.96 × 108,620.29
  4. Step 4: Simplify right side
    194,642.29x = 29,177,252,094.12
  5. Step 5: Solve for x
    x = 29,177,252,094.12/194,642.29
  6. Step 6: Final answer
    x = 149,901.92

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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.