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Finding the Fourth Proportional to 122,936.40, 184,404.60 and 109,803.60

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Solution

The fourth proportional to 122,936.40, 184,404.60 and 109,803.60 is: 164,705.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,936.40 : 184,404.60 = 109,803.60 : x
  2. Step 2: Convert to fraction form
    122,936.40/184,404.60 = 109,803.60/x
  3. Step 3: Cross multiply
    122,936.40x = 184,404.60 × 109,803.60
  4. Step 4: Simplify right side
    122,936.40x = 20,248,288,936.56
  5. Step 5: Solve for x
    x = 20,248,288,936.56/122,936.40
  6. Step 6: Final answer
    x = 164,705.40

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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.