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Finding the Fourth Proportional to 366,940.99, 550,386.72 and 100,679.20

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Solution

The fourth proportional to 366,940.99, 550,386.72 and 100,679.20 is: 151,012.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    366,940.99 : 550,386.72 = 100,679.20 : x
  2. Step 2: Convert to fraction form
    366,940.99/550,386.72 = 100,679.20/x
  3. Step 3: Cross multiply
    366,940.99x = 550,386.72 × 100,679.20
  4. Step 4: Simplify right side
    366,940.99x = 55,412,494,660.22
  5. Step 5: Solve for x
    x = 55,412,494,660.22/366,940.99
  6. Step 6: Final answer
    x = 151,012.01

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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.