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Finding the Fourth Proportional to 122,881.94, 184,027.65 and 70,131.50

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Solution

The fourth proportional to 122,881.94, 184,027.65 and 70,131.50 is: 105,028.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,881.94 : 184,027.65 = 70,131.50 : x
  2. Step 2: Convert to fraction form
    122,881.94/184,027.65 = 70,131.50/x
  3. Step 3: Cross multiply
    122,881.94x = 184,027.65 × 70,131.50
  4. Step 4: Simplify right side
    122,881.94x = 12,906,135,135.98
  5. Step 5: Solve for x
    x = 12,906,135,135.98/122,881.94
  6. Step 6: Final answer
    x = 105,028.74

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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.