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Finding the Fourth Proportional to 218,061.40, 327,092.10 and 204,928.60

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Solution

The fourth proportional to 218,061.40, 327,092.10 and 204,928.60 is: 307,392.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,061.40 : 327,092.10 = 204,928.60 : x
  2. Step 2: Convert to fraction form
    218,061.40/327,092.10 = 204,928.60/x
  3. Step 3: Cross multiply
    218,061.40x = 327,092.10 × 204,928.60
  4. Step 4: Simplify right side
    218,061.40x = 67,030,526,124.06
  5. Step 5: Solve for x
    x = 67,030,526,124.06/218,061.40
  6. Step 6: Final answer
    x = 307,392.90

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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.