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Finding the Fourth Proportional to 139,573.26, 209,354.94 and 39,733.98

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Solution

The fourth proportional to 139,573.26, 209,354.94 and 39,733.98 is: 59,599.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,573.26 : 209,354.94 = 39,733.98 : x
  2. Step 2: Convert to fraction form
    139,573.26/209,354.94 = 39,733.98/x
  3. Step 3: Cross multiply
    139,573.26x = 209,354.94 × 39,733.98
  4. Step 4: Simplify right side
    139,573.26x = 8,318,504,998.86
  5. Step 5: Solve for x
    x = 8,318,504,998.86/139,573.26
  6. Step 6: Final answer
    x = 59,599.56

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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.