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Finding the Fourth Proportional to 202,687.49, 279,704.61 and 112,047.27

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Solution

The fourth proportional to 202,687.49, 279,704.61 and 112,047.27 is: 154,622.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    202,687.49 : 279,704.61 = 112,047.27 : x
  2. Step 2: Convert to fraction form
    202,687.49/279,704.61 = 112,047.27/x
  3. Step 3: Cross multiply
    202,687.49x = 279,704.61 × 112,047.27
  4. Step 4: Simplify right side
    202,687.49x = 31,340,137,956.91
  5. Step 5: Solve for x
    x = 31,340,137,956.91/202,687.49
  6. Step 6: Final answer
    x = 154,622.96

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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.