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Finding the Fourth Proportional to 301,326.44, 451,976.69 and 90,958.10

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Solution

The fourth proportional to 301,326.44, 451,976.69 and 90,958.10 is: 136,433.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    301,326.44 : 451,976.69 = 90,958.10 : x
  2. Step 2: Convert to fraction form
    301,326.44/451,976.69 = 90,958.10/x
  3. Step 3: Cross multiply
    301,326.44x = 451,976.69 × 90,958.10
  4. Step 4: Simplify right side
    301,326.44x = 41,110,938,706.81
  5. Step 5: Solve for x
    x = 41,110,938,706.81/301,326.44
  6. Step 6: Final answer
    x = 136,433.23

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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.