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Finding the Fourth Proportional to 218,603.02, 327,620.48 and 98,571.82

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Solution

The fourth proportional to 218,603.02, 327,620.48 and 98,571.82 is: 147,729.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,603.02 : 327,620.48 = 98,571.82 : x
  2. Step 2: Convert to fraction form
    218,603.02/327,620.48 = 98,571.82/x
  3. Step 3: Cross multiply
    218,603.02x = 327,620.48 × 98,571.82
  4. Step 4: Simplify right side
    218,603.02x = 32,294,146,982.87
  5. Step 5: Solve for x
    x = 32,294,146,982.87/218,603.02
  6. Step 6: Final answer
    x = 147,729.65

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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.