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Finding the Fourth Proportional to 300,661.08, 451,033 and 101,038.56

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Solution

The fourth proportional to 300,661.08, 451,033 and 101,038.56 is: 151,571.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    300,661.08 : 451,033 = 101,038.56 : x
  2. Step 2: Convert to fraction form
    300,661.08/451,033 = 101,038.56/x
  3. Step 3: Cross multiply
    300,661.08x = 451,033 × 101,038.56
  4. Step 4: Simplify right side
    300,661.08x = 45,571,724,832.48
  5. Step 5: Solve for x
    x = 45,571,724,832.48/300,661.08
  6. Step 6: Final answer
    x = 151,571.75

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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.