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Finding the Fourth Proportional to 123,255.21, 184,864.21 and 39,004.43

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Solution

The fourth proportional to 123,255.21, 184,864.21 and 39,004.43 is: 58,500.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,255.21 : 184,864.21 = 39,004.43 : x
  2. Step 2: Convert to fraction form
    123,255.21/184,864.21 = 39,004.43/x
  3. Step 3: Cross multiply
    123,255.21x = 184,864.21 × 39,004.43
  4. Step 4: Simplify right side
    123,255.21x = 7,210,523,138.45
  5. Step 5: Solve for x
    x = 7,210,523,138.45/123,255.21
  6. Step 6: Final answer
    x = 58,500.76

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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.