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Finding the Fourth Proportional to 300,954.06, 451,490.06 and 111,415.98

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Solution

The fourth proportional to 300,954.06, 451,490.06 and 111,415.98 is: 167,145.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    300,954.06 : 451,490.06 = 111,415.98 : x
  2. Step 2: Convert to fraction form
    300,954.06/451,490.06 = 111,415.98/x
  3. Step 3: Cross multiply
    300,954.06x = 451,490.06 × 111,415.98
  4. Step 4: Simplify right side
    300,954.06x = 50,303,207,495.16
  5. Step 5: Solve for x
    x = 50,303,207,495.16/300,954.06
  6. Step 6: Final answer
    x = 167,145.80

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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.