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Finding the Fourth Proportional to 199,505.51, 275,324.25 and 108,866.45

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Solution

The fourth proportional to 199,505.51, 275,324.25 and 108,866.45 is: 150,239.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    199,505.51 : 275,324.25 = 108,866.45 : x
  2. Step 2: Convert to fraction form
    199,505.51/275,324.25 = 108,866.45/x
  3. Step 3: Cross multiply
    199,505.51x = 275,324.25 × 108,866.45
  4. Step 4: Simplify right side
    199,505.51x = 29,973,574,434.82
  5. Step 5: Solve for x
    x = 29,973,574,434.82/199,505.51
  6. Step 6: Final answer
    x = 150,239.33

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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.