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Finding the Fourth Proportional to 101,936.86, 140,651.88 and 58,900.95

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Solution

The fourth proportional to 101,936.86, 140,651.88 and 58,900.95 is: 81,271.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,936.86 : 140,651.88 = 58,900.95 : x
  2. Step 2: Convert to fraction form
    101,936.86/140,651.88 = 58,900.95/x
  3. Step 3: Cross multiply
    101,936.86x = 140,651.88 × 58,900.95
  4. Step 4: Simplify right side
    101,936.86x = 8,284,529,850.17
  5. Step 5: Solve for x
    x = 8,284,529,850.17/101,936.86
  6. Step 6: Final answer
    x = 81,271.19

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.