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Finding the Fourth Proportional to 221,865.40, 332,603.70 and 133,024.60

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Solution

The fourth proportional to 221,865.40, 332,603.70 and 133,024.60 is: 199,420.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,865.40 : 332,603.70 = 133,024.60 : x
  2. Step 2: Convert to fraction form
    221,865.40/332,603.70 = 133,024.60/x
  3. Step 3: Cross multiply
    221,865.40x = 332,603.70 × 133,024.60
  4. Step 4: Simplify right side
    221,865.40x = 44,244,474,151.02
  5. Step 5: Solve for x
    x = 44,244,474,151.02/221,865.40
  6. Step 6: Final answer
    x = 199,420.34

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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.