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Finding the Fourth Proportional to 122,597.20, 169,183.88 and 68,883.60

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Solution

The fourth proportional to 122,597.20, 169,183.88 and 68,883.60 is: 95,059.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,597.20 : 169,183.88 = 68,883.60 : x
  2. Step 2: Convert to fraction form
    122,597.20/169,183.88 = 68,883.60/x
  3. Step 3: Cross multiply
    122,597.20x = 169,183.88 × 68,883.60
  4. Step 4: Simplify right side
    122,597.20x = 11,653,994,716.37
  5. Step 5: Solve for x
    x = 11,653,994,716.37/122,597.20
  6. Step 6: Final answer
    x = 95,059.22

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.