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Finding the Fourth Proportional to 216,408.92, 324,601.23 and 58,625.78

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Solution

The fourth proportional to 216,408.92, 324,601.23 and 58,625.78 is: 87,935.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    216,408.92 : 324,601.23 = 58,625.78 : x
  2. Step 2: Convert to fraction form
    216,408.92/324,601.23 = 58,625.78/x
  3. Step 3: Cross multiply
    216,408.92x = 324,601.23 × 58,625.78
  4. Step 4: Simplify right side
    216,408.92x = 19,030,000,297.71
  5. Step 5: Solve for x
    x = 19,030,000,297.71/216,408.92
  6. Step 6: Final answer
    x = 87,935.38

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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.