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Finding the Fourth Proportional to 221,897.40, 332,651.70 and 133,056.60

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Solution

The fourth proportional to 221,897.40, 332,651.70 and 133,056.60 is: 199,468.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,897.40 : 332,651.70 = 133,056.60 : x
  2. Step 2: Convert to fraction form
    221,897.40/332,651.70 = 133,056.60/x
  3. Step 3: Cross multiply
    221,897.40x = 332,651.70 × 133,056.60
  4. Step 4: Simplify right side
    221,897.40x = 44,261,504,186.22
  5. Step 5: Solve for x
    x = 44,261,504,186.22/221,897.40
  6. Step 6: Final answer
    x = 199,468.33

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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.