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Finding the Fourth Proportional to 199,556.48, 275,385.48 and 108,913.88

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Solution

The fourth proportional to 199,556.48, 275,385.48 and 108,913.88 is: 150,299.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    199,556.48 : 275,385.48 = 108,913.88 : x
  2. Step 2: Convert to fraction form
    199,556.48/275,385.48 = 108,913.88/x
  3. Step 3: Cross multiply
    199,556.48x = 275,385.48 × 108,913.88
  4. Step 4: Simplify right side
    199,556.48x = 29,993,301,122.46
  5. Step 5: Solve for x
    x = 29,993,301,122.46/199,556.48
  6. Step 6: Final answer
    x = 150,299.81

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.