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Finding the Fourth Proportional to 122,978.37, 184,050.90 and 75,623.46

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Solution

The fourth proportional to 122,978.37, 184,050.90 and 75,623.46 is: 113,178.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,978.37 : 184,050.90 = 75,623.46 : x
  2. Step 2: Convert to fraction form
    122,978.37/184,050.90 = 75,623.46/x
  3. Step 3: Cross multiply
    122,978.37x = 184,050.90 × 75,623.46
  4. Step 4: Simplify right side
    122,978.37x = 13,918,565,183.92
  5. Step 5: Solve for x
    x = 13,918,565,183.92/122,978.37
  6. Step 6: Final answer
    x = 113,178.97

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.