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Finding the Fourth Proportional to 218,624.97, 327,196.73 and 134,438.45

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Solution

The fourth proportional to 218,624.97, 327,196.73 and 134,438.45 is: 201,202.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,624.97 : 327,196.73 = 134,438.45 : x
  2. Step 2: Convert to fraction form
    218,624.97/327,196.73 = 134,438.45/x
  3. Step 3: Cross multiply
    218,624.97x = 327,196.73 × 134,438.45
  4. Step 4: Simplify right side
    218,624.97x = 43,987,822,380.36
  5. Step 5: Solve for x
    x = 43,987,822,380.36/218,624.97
  6. Step 6: Final answer
    x = 201,202.19

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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.