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Finding the Fourth Proportional to 218,191.78, 327,284.39 and 98,163.97

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Solution

The fourth proportional to 218,191.78, 327,284.39 and 98,163.97 is: 147,244.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,191.78 : 327,284.39 = 98,163.97 : x
  2. Step 2: Convert to fraction form
    218,191.78/327,284.39 = 98,163.97/x
  3. Step 3: Cross multiply
    218,191.78x = 327,284.39 × 98,163.97
  4. Step 4: Simplify right side
    218,191.78x = 32,127,533,732.40
  5. Step 5: Solve for x
    x = 32,127,533,732.40/218,191.78
  6. Step 6: Final answer
    x = 147,244.47

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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.