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Finding the Fourth Proportional to 187,765.97, 281,693.25 and 61,405.72

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Solution

The fourth proportional to 187,765.97, 281,693.25 and 61,405.72 is: 92,123.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,765.97 : 281,693.25 = 61,405.72 : x
  2. Step 2: Convert to fraction form
    187,765.97/281,693.25 = 61,405.72/x
  3. Step 3: Cross multiply
    187,765.97x = 281,693.25 × 61,405.72
  4. Step 4: Simplify right side
    187,765.97x = 17,297,576,131.16
  5. Step 5: Solve for x
    x = 17,297,576,131.16/187,765.97
  6. Step 6: Final answer
    x = 92,123.06

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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.