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Finding the Fourth Proportional to 122,928.60, 184,368.60 and 59,748.60

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Solution

The fourth proportional to 122,928.60, 184,368.60 and 59,748.60 is: 89,611.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,928.60 : 184,368.60 = 59,748.60 : x
  2. Step 2: Convert to fraction form
    122,928.60/184,368.60 = 59,748.60/x
  3. Step 3: Cross multiply
    122,928.60x = 184,368.60 × 59,748.60
  4. Step 4: Simplify right side
    122,928.60x = 11,015,765,733.96
  5. Step 5: Solve for x
    x = 11,015,765,733.96/122,928.60
  6. Step 6: Final answer
    x = 89,611.09

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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.