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Finding the Fourth Proportional to 123,039.81, 184,545.09 and 39,933.81

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Solution

The fourth proportional to 123,039.81, 184,545.09 and 39,933.81 is: 59,895.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,039.81 : 184,545.09 = 39,933.81 : x
  2. Step 2: Convert to fraction form
    123,039.81/184,545.09 = 39,933.81/x
  3. Step 3: Cross multiply
    123,039.81x = 184,545.09 × 39,933.81
  4. Step 4: Simplify right side
    123,039.81x = 7,369,588,560.49
  5. Step 5: Solve for x
    x = 7,369,588,560.49/123,039.81
  6. Step 6: Final answer
    x = 59,895.97

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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.