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Finding the Fourth Proportional to 187,063.71, 280,637.03 and 53,933.57

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Solution

The fourth proportional to 187,063.71, 280,637.03 and 53,933.57 is: 80,912.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,063.71 : 280,637.03 = 53,933.57 : x
  2. Step 2: Convert to fraction form
    187,063.71/280,637.03 = 53,933.57/x
  3. Step 3: Cross multiply
    187,063.71x = 280,637.03 × 53,933.57
  4. Step 4: Simplify right side
    187,063.71x = 15,135,756,902.10
  5. Step 5: Solve for x
    x = 15,135,756,902.10/187,063.71
  6. Step 6: Final answer
    x = 80,912.31

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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.