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Finding the Fourth Proportional to 148,774.40, 223,183.20 and 48,939.20

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Solution

The fourth proportional to 148,774.40, 223,183.20 and 48,939.20 is: 73,415.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    148,774.40 : 223,183.20 = 48,939.20 : x
  2. Step 2: Convert to fraction form
    148,774.40/223,183.20 = 48,939.20/x
  3. Step 3: Cross multiply
    148,774.40x = 223,183.20 × 48,939.20
  4. Step 4: Simplify right side
    148,774.40x = 10,922,407,261.44
  5. Step 5: Solve for x
    x = 10,922,407,261.44/148,774.40
  6. Step 6: Final answer
    x = 73,415.91

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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.