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Finding the Fourth Proportional to 187,960.72, 259,361.88 and 107,393.46

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Solution

The fourth proportional to 187,960.72, 259,361.88 and 107,393.46 is: 148,189.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,960.72 : 259,361.88 = 107,393.46 : x
  2. Step 2: Convert to fraction form
    187,960.72/259,361.88 = 107,393.46/x
  3. Step 3: Cross multiply
    187,960.72x = 259,361.88 × 107,393.46
  4. Step 4: Simplify right side
    187,960.72x = 27,853,769,685.30
  5. Step 5: Solve for x
    x = 27,853,769,685.30/187,960.72
  6. Step 6: Final answer
    x = 148,189.31

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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.