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Finding the Fourth Proportional to 123,206.62, 184,832.72 and 38,987.99

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Solution

The fourth proportional to 123,206.62, 184,832.72 and 38,987.99 is: 58,489.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,206.62 : 184,832.72 = 38,987.99 : x
  2. Step 2: Convert to fraction form
    123,206.62/184,832.72 = 38,987.99/x
  3. Step 3: Cross multiply
    123,206.62x = 184,832.72 × 38,987.99
  4. Step 4: Simplify right side
    123,206.62x = 7,206,256,239.03
  5. Step 5: Solve for x
    x = 7,206,256,239.03/123,206.62
  6. Step 6: Final answer
    x = 58,489.20

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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.