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Finding the Fourth Proportional to 193,392.83, 290,018.37 and 67,000.43

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Solution

The fourth proportional to 193,392.83, 290,018.37 and 67,000.43 is: 100,476.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    193,392.83 : 290,018.37 = 67,000.43 : x
  2. Step 2: Convert to fraction form
    193,392.83/290,018.37 = 67,000.43/x
  3. Step 3: Cross multiply
    193,392.83x = 290,018.37 × 67,000.43
  4. Step 4: Simplify right side
    193,392.83x = 19,431,355,497.90
  5. Step 5: Solve for x
    x = 19,431,355,497.90/193,392.83
  6. Step 6: Final answer
    x = 100,476.09

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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.