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Finding the Fourth Proportional to 221,403.70, 332,105.55 and 146,608.30

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Solution

The fourth proportional to 221,403.70, 332,105.55 and 146,608.30 is: 219,912.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,403.70 : 332,105.55 = 146,608.30 : x
  2. Step 2: Convert to fraction form
    221,403.70/332,105.55 = 146,608.30/x
  3. Step 3: Cross multiply
    221,403.70x = 332,105.55 × 146,608.30
  4. Step 4: Simplify right side
    221,403.70x = 48,689,430,106.07
  5. Step 5: Solve for x
    x = 48,689,430,106.07/221,403.70
  6. Step 6: Final answer
    x = 219,912.45

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.