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Finding the Fourth Proportional to 187,553.88, 281,189.33 and 61,118.63

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Solution

The fourth proportional to 187,553.88, 281,189.33 and 61,118.63 is: 91,631.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,553.88 : 281,189.33 = 61,118.63 : x
  2. Step 2: Convert to fraction form
    187,553.88/281,189.33 = 61,118.63/x
  3. Step 3: Cross multiply
    187,553.88x = 281,189.33 × 61,118.63
  4. Step 4: Simplify right side
    187,553.88x = 17,185,904,908.68
  5. Step 5: Solve for x
    x = 17,185,904,908.68/187,553.88
  6. Step 6: Final answer
    x = 91,631.83

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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.