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Finding the Fourth Proportional to 262,458.36, 393,690.78 and 104,594.76

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Solution

The fourth proportional to 262,458.36, 393,690.78 and 104,594.76 is: 156,893.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    262,458.36 : 393,690.78 = 104,594.76 : x
  2. Step 2: Convert to fraction form
    262,458.36/393,690.78 = 104,594.76/x
  3. Step 3: Cross multiply
    262,458.36x = 393,690.78 × 104,594.76
  4. Step 4: Simplify right side
    262,458.36x = 41,177,992,648.31
  5. Step 5: Solve for x
    x = 41,177,992,648.31/262,458.36
  6. Step 6: Final answer
    x = 156,893.43

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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.