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Finding the Fourth Proportional to 122,965.20, 184,447.80 and 122,043.60

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Solution

The fourth proportional to 122,965.20, 184,447.80 and 122,043.60 is: 183,065.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,965.20 : 184,447.80 = 122,043.60 : x
  2. Step 2: Convert to fraction form
    122,965.20/184,447.80 = 122,043.60/x
  3. Step 3: Cross multiply
    122,965.20x = 184,447.80 × 122,043.60
  4. Step 4: Simplify right side
    122,965.20x = 22,510,673,524.08
  5. Step 5: Solve for x
    x = 22,510,673,524.08/122,965.20
  6. Step 6: Final answer
    x = 183,065.40

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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.