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Finding the Fourth Proportional to 122,835.60, 184,350.60 and 47,991.60

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Solution

The fourth proportional to 122,835.60, 184,350.60 and 47,991.60 is: 72,025.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,835.60 : 184,350.60 = 47,991.60 : x
  2. Step 2: Convert to fraction form
    122,835.60/184,350.60 = 47,991.60/x
  3. Step 3: Cross multiply
    122,835.60x = 184,350.60 × 47,991.60
  4. Step 4: Simplify right side
    122,835.60x = 8,847,280,254.96
  5. Step 5: Solve for x
    x = 8,847,280,254.96/122,835.60
  6. Step 6: Final answer
    x = 72,025.38

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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.