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Finding the Fourth Proportional to 99,937.73, 149,863.93 and 57,846.87

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Solution

The fourth proportional to 99,937.73, 149,863.93 and 57,846.87 is: 86,745.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,937.73 : 149,863.93 = 57,846.87 : x
  2. Step 2: Convert to fraction form
    99,937.73/149,863.93 = 57,846.87/x
  3. Step 3: Cross multiply
    99,937.73x = 149,863.93 × 57,846.87
  4. Step 4: Simplify right side
    99,937.73x = 8,669,159,131.78
  5. Step 5: Solve for x
    x = 8,669,159,131.78/99,937.73
  6. Step 6: Final answer
    x = 86,745.61

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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.