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Finding the Fourth Proportional to 193,300.22, 289,880.79 and 66,906.13

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Solution

The fourth proportional to 193,300.22, 289,880.79 and 66,906.13 is: 100,335.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    193,300.22 : 289,880.79 = 66,906.13 : x
  2. Step 2: Convert to fraction form
    193,300.22/289,880.79 = 66,906.13/x
  3. Step 3: Cross multiply
    193,300.22x = 289,880.79 × 66,906.13
  4. Step 4: Simplify right side
    193,300.22x = 19,394,801,820.24
  5. Step 5: Solve for x
    x = 19,394,801,820.24/193,300.22
  6. Step 6: Final answer
    x = 100,335.13

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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.