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Finding the Fourth Proportional to 216,058.82, 324,094.21 and 58,286.81

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Solution

The fourth proportional to 216,058.82, 324,094.21 and 58,286.81 is: 87,431.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    216,058.82 : 324,094.21 = 58,286.81 : x
  2. Step 2: Convert to fraction form
    216,058.82/324,094.21 = 58,286.81/x
  3. Step 3: Cross multiply
    216,058.82x = 324,094.21 × 58,286.81
  4. Step 4: Simplify right side
    216,058.82x = 18,890,418,304.89
  5. Step 5: Solve for x
    x = 18,890,418,304.89/216,058.82
  6. Step 6: Final answer
    x = 87,431.83

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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.