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Finding the Fourth Proportional to 235,396.98, 353,092.41 and 57,905.55

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Solution

The fourth proportional to 235,396.98, 353,092.41 and 57,905.55 is: 86,857.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    235,396.98 : 353,092.41 = 57,905.55 : x
  2. Step 2: Convert to fraction form
    235,396.98/353,092.41 = 57,905.55/x
  3. Step 3: Cross multiply
    235,396.98x = 353,092.41 × 57,905.55
  4. Step 4: Simplify right side
    235,396.98x = 20,446,010,201.88
  5. Step 5: Solve for x
    x = 20,446,010,201.88/235,396.98
  6. Step 6: Final answer
    x = 86,857.57

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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.