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Finding the Fourth Proportional to 110,845.70, 166,268.55 and 66,449.60

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Solution

The fourth proportional to 110,845.70, 166,268.55 and 66,449.60 is: 99,674.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    110,845.70 : 166,268.55 = 66,449.60 : x
  2. Step 2: Convert to fraction form
    110,845.70/166,268.55 = 66,449.60/x
  3. Step 3: Cross multiply
    110,845.70x = 166,268.55 × 66,449.60
  4. Step 4: Simplify right side
    110,845.70x = 11,048,478,640.08
  5. Step 5: Solve for x
    x = 11,048,478,640.08/110,845.70
  6. Step 6: Final answer
    x = 99,674.40

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1.5x scale

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.