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Finding the Fourth Proportional to 123,339.67, 184,977.09 and 53,203.39

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Solution

The fourth proportional to 123,339.67, 184,977.09 and 53,203.39 is: 79,791.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,339.67 : 184,977.09 = 53,203.39 : x
  2. Step 2: Convert to fraction form
    123,339.67/184,977.09 = 53,203.39/x
  3. Step 3: Cross multiply
    123,339.67x = 184,977.09 × 53,203.39
  4. Step 4: Simplify right side
    123,339.67x = 9,841,407,797.89
  5. Step 5: Solve for x
    x = 9,841,407,797.89/123,339.67
  6. Step 6: Final answer
    x = 79,791.10

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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.