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Finding the Fourth Proportional to 193,233.80, 289,850.70 and 66,873.80

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Solution

The fourth proportional to 193,233.80, 289,850.70 and 66,873.80 is: 100,310.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    193,233.80 : 289,850.70 = 66,873.80 : x
  2. Step 2: Convert to fraction form
    193,233.80/289,850.70 = 66,873.80/x
  3. Step 3: Cross multiply
    193,233.80x = 289,850.70 × 66,873.80
  4. Step 4: Simplify right side
    193,233.80x = 19,383,417,741.66
  5. Step 5: Solve for x
    x = 19,383,417,741.66/193,233.80
  6. Step 6: Final answer
    x = 100,310.70

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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.