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Finding the Fourth Proportional to 179,831, 269,759.46 and 69,023

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Solution

The fourth proportional to 179,831, 269,759.46 and 69,023 is: 103,539.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    179,831 : 269,759.46 = 69,023 : x
  2. Step 2: Convert to fraction form
    179,831/269,759.46 = 69,023/x
  3. Step 3: Cross multiply
    179,831x = 269,759.46 × 69,023
  4. Step 4: Simplify right side
    179,831x = 18,619,607,207.58
  5. Step 5: Solve for x
    x = 18,619,607,207.58/179,831
  6. Step 6: Final answer
    x = 103,539.47

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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.