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Finding the Fourth Proportional to 296,955, 445,458.46 and 75,339

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Solution

The fourth proportional to 296,955, 445,458.46 and 75,339 is: 113,015.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    296,955 : 445,458.46 = 75,339 : x
  2. Step 2: Convert to fraction form
    296,955/445,458.46 = 75,339/x
  3. Step 3: Cross multiply
    296,955x = 445,458.46 × 75,339
  4. Step 4: Simplify right side
    296,955x = 33,560,394,917.94
  5. Step 5: Solve for x
    x = 33,560,394,917.94/296,955
  6. Step 6: Final answer
    x = 113,015.09

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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.