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Finding the Fourth Proportional to 74,489.60, 111,739.80 and 44,843.60

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Solution

The fourth proportional to 74,489.60, 111,739.80 and 44,843.60 is: 67,268.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,489.60 : 111,739.80 = 44,843.60 : x
  2. Step 2: Convert to fraction form
    74,489.60/111,739.80 = 44,843.60/x
  3. Step 3: Cross multiply
    74,489.60x = 111,739.80 × 44,843.60
  4. Step 4: Simplify right side
    74,489.60x = 5,010,814,895.28
  5. Step 5: Solve for x
    x = 5,010,814,895.28/74,489.60
  6. Step 6: Final answer
    x = 67,268.65

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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.