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Finding the Fourth Proportional to 353,825.78, 530,488.46 and 113,865.44

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Solution

The fourth proportional to 353,825.78, 530,488.46 and 113,865.44 is: 170,717.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    353,825.78 : 530,488.46 = 113,865.44 : x
  2. Step 2: Convert to fraction form
    353,825.78/530,488.46 = 113,865.44/x
  3. Step 3: Cross multiply
    353,825.78x = 530,488.46 × 113,865.44
  4. Step 4: Simplify right side
    353,825.78x = 60,404,298,691.05
  5. Step 5: Solve for x
    x = 60,404,298,691.05/353,825.78
  6. Step 6: Final answer
    x = 170,717.63

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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.