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Finding the Fourth Proportional to 167,471.85, 251,420.94 and 108,554.07

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Solution

The fourth proportional to 167,471.85, 251,420.94 and 108,554.07 is: 162,969.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    167,471.85 : 251,420.94 = 108,554.07 : x
  2. Step 2: Convert to fraction form
    167,471.85/251,420.94 = 108,554.07/x
  3. Step 3: Cross multiply
    167,471.85x = 251,420.94 × 108,554.07
  4. Step 4: Simplify right side
    167,471.85x = 27,292,766,320.23
  5. Step 5: Solve for x
    x = 27,292,766,320.23/167,471.85
  6. Step 6: Final answer
    x = 162,969.28

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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.