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Finding the Fourth Proportional to 123,279.88, 184,941.42 and 53,161.96

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Solution

The fourth proportional to 123,279.88, 184,941.42 and 53,161.96 is: 79,752.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,279.88 : 184,941.42 = 53,161.96 : x
  2. Step 2: Convert to fraction form
    123,279.88/184,941.42 = 53,161.96/x
  3. Step 3: Cross multiply
    123,279.88x = 184,941.42 × 53,161.96
  4. Step 4: Simplify right side
    123,279.88x = 9,831,848,372.38
  5. Step 5: Solve for x
    x = 9,831,848,372.38/123,279.88
  6. Step 6: Final answer
    x = 79,752.25

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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.