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Finding the Fourth Proportional to 187,674.92, 280,806.09 and 131,624.43

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Solution

The fourth proportional to 187,674.92, 280,806.09 and 131,624.43 is: 196,941.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,674.92 : 280,806.09 = 131,624.43 : x
  2. Step 2: Convert to fraction form
    187,674.92/280,806.09 = 131,624.43/x
  3. Step 3: Cross multiply
    187,674.92x = 280,806.09 × 131,624.43
  4. Step 4: Simplify right side
    187,674.92x = 36,960,941,536.78
  5. Step 5: Solve for x
    x = 36,960,941,536.78/187,674.92
  6. Step 6: Final answer
    x = 196,941.29

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.