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Finding the Fourth Proportional to 403,993.56, 606,015.18 and 167,354.76

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Solution

The fourth proportional to 403,993.56, 606,015.18 and 167,354.76 is: 251,042.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    403,993.56 : 606,015.18 = 167,354.76 : x
  2. Step 2: Convert to fraction form
    403,993.56/606,015.18 = 167,354.76/x
  3. Step 3: Cross multiply
    403,993.56x = 606,015.18 × 167,354.76
  4. Step 4: Simplify right side
    403,993.56x = 101,419,525,005.26
  5. Step 5: Solve for x
    x = 101,419,525,005.26/403,993.56
  6. Step 6: Final answer
    x = 251,042.43

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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.