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Finding the Fourth Proportional to 122,881.44, 184,026.90 and 70,131

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Solution

The fourth proportional to 122,881.44, 184,026.90 and 70,131 is: 105,027.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,881.44 : 184,026.90 = 70,131 : x
  2. Step 2: Convert to fraction form
    122,881.44/184,026.90 = 70,131/x
  3. Step 3: Cross multiply
    122,881.44x = 184,026.90 × 70,131
  4. Step 4: Simplify right side
    122,881.44x = 12,905,990,523.90
  5. Step 5: Solve for x
    x = 12,905,990,523.90/122,881.44
  6. Step 6: Final answer
    x = 105,027.99

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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.