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Finding the Fourth Proportional to 301,268.52, 451,906.26 and 90,908.28

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Solution

The fourth proportional to 301,268.52, 451,906.26 and 90,908.28 is: 136,363.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    301,268.52 : 451,906.26 = 90,908.28 : x
  2. Step 2: Convert to fraction form
    301,268.52/451,906.26 = 90,908.28/x
  3. Step 3: Cross multiply
    301,268.52x = 451,906.26 × 90,908.28
  4. Step 4: Simplify right side
    301,268.52x = 41,082,020,817.83
  5. Step 5: Solve for x
    x = 41,082,020,817.83/301,268.52
  6. Step 6: Final answer
    x = 136,363.47

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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.