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Finding the Fourth Proportional to 403,556.72, 605,124.89 and 150,629.22

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Solution

The fourth proportional to 403,556.72, 605,124.89 and 150,629.22 is: 225,865.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    403,556.72 : 605,124.89 = 150,629.22 : x
  2. Step 2: Convert to fraction form
    403,556.72/605,124.89 = 150,629.22/x
  3. Step 3: Cross multiply
    403,556.72x = 605,124.89 × 150,629.22
  4. Step 4: Simplify right side
    403,556.72x = 91,149,489,995.00
  5. Step 5: Solve for x
    x = 91,149,489,995.00/403,556.72
  6. Step 6: Final answer
    x = 225,865.38

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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.