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Finding the Fourth Proportional to 139,392.96, 209,023.80 and 50,584.32

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Solution

The fourth proportional to 139,392.96, 209,023.80 and 50,584.32 is: 75,852.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,392.96 : 209,023.80 = 50,584.32 : x
  2. Step 2: Convert to fraction form
    139,392.96/209,023.80 = 50,584.32/x
  3. Step 3: Cross multiply
    139,392.96x = 209,023.80 × 50,584.32
  4. Step 4: Simplify right side
    139,392.96x = 10,573,326,786.82
  5. Step 5: Solve for x
    x = 10,573,326,786.82/139,392.96
  6. Step 6: Final answer
    x = 75,852.66

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.