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Finding the Fourth Proportional to 146,620.98, 219,993.84 and 99,289.44

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Solution

The fourth proportional to 146,620.98, 219,993.84 and 99,289.44 is: 148,976.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    146,620.98 : 219,993.84 = 99,289.44 : x
  2. Step 2: Convert to fraction form
    146,620.98/219,993.84 = 99,289.44/x
  3. Step 3: Cross multiply
    146,620.98x = 219,993.84 × 99,289.44
  4. Step 4: Simplify right side
    146,620.98x = 21,843,065,177.05
  5. Step 5: Solve for x
    x = 21,843,065,177.05/146,620.98
  6. Step 6: Final answer
    x = 148,976.40

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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.