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Finding the Fourth Proportional to 139,370.58, 192,333.24 and 75,709.44

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Solution

The fourth proportional to 139,370.58, 192,333.24 and 75,709.44 is: 104,480.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,370.58 : 192,333.24 = 75,709.44 : x
  2. Step 2: Convert to fraction form
    139,370.58/192,333.24 = 75,709.44/x
  3. Step 3: Cross multiply
    139,370.58x = 192,333.24 × 75,709.44
  4. Step 4: Simplify right side
    139,370.58x = 14,561,441,893.79
  5. Step 5: Solve for x
    x = 14,561,441,893.79/139,370.58
  6. Step 6: Final answer
    x = 104,480.03

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.