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Finding the Fourth Proportional to 193,249.60, 289,924.80 and 74,924.80

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Solution

The fourth proportional to 193,249.60, 289,924.80 and 74,924.80 is: 112,406.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    193,249.60 : 289,924.80 = 74,924.80 : x
  2. Step 2: Convert to fraction form
    193,249.60/289,924.80 = 74,924.80/x
  3. Step 3: Cross multiply
    193,249.60x = 289,924.80 × 74,924.80
  4. Step 4: Simplify right side
    193,249.60x = 21,722,557,655.04
  5. Step 5: Solve for x
    x = 21,722,557,655.04/193,249.60
  6. Step 6: Final answer
    x = 112,406.74

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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.