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Finding the Fourth Proportional to 187,755.94, 281,651.19 and 61,396.84

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Solution

The fourth proportional to 187,755.94, 281,651.19 and 61,396.84 is: 92,100.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,755.94 : 281,651.19 = 61,396.84 : x
  2. Step 2: Convert to fraction form
    187,755.94/281,651.19 = 61,396.84/x
  3. Step 3: Cross multiply
    187,755.94x = 281,651.19 × 61,396.84
  4. Step 4: Simplify right side
    187,755.94x = 17,292,493,048.24
  5. Step 5: Solve for x
    x = 17,292,493,048.24/187,755.94
  6. Step 6: Final answer
    x = 92,100.91

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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.