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Finding the Fourth Proportional to 103,163.90, 154,769.09 and 36,603.93

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Solution

The fourth proportional to 103,163.90, 154,769.09 and 36,603.93 is: 54,914.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,163.90 : 154,769.09 = 36,603.93 : x
  2. Step 2: Convert to fraction form
    103,163.90/154,769.09 = 36,603.93/x
  3. Step 3: Cross multiply
    103,163.90x = 154,769.09 × 36,603.93
  4. Step 4: Simplify right side
    103,163.90x = 5,665,156,936.52
  5. Step 5: Solve for x
    x = 5,665,156,936.52/103,163.90
  6. Step 6: Final answer
    x = 54,914.14

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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.