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Finding the Fourth Proportional to 122,781.88, 184,021.26 and 63,583.48

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Solution

The fourth proportional to 122,781.88, 184,021.26 and 63,583.48 is: 95,296.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,781.88 : 184,021.26 = 63,583.48 : x
  2. Step 2: Convert to fraction form
    122,781.88/184,021.26 = 63,583.48/x
  3. Step 3: Cross multiply
    122,781.88x = 184,021.26 × 63,583.48
  4. Step 4: Simplify right side
    122,781.88x = 11,700,712,104.78
  5. Step 5: Solve for x
    x = 11,700,712,104.78/122,781.88
  6. Step 6: Final answer
    x = 95,296.73

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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.