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Finding the Fourth Proportional to 262,388.54, 393,486.41 and 93,863.18

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Solution

The fourth proportional to 262,388.54, 393,486.41 and 93,863.18 is: 140,760.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    262,388.54 : 393,486.41 = 93,863.18 : x
  2. Step 2: Convert to fraction form
    262,388.54/393,486.41 = 93,863.18/x
  3. Step 3: Cross multiply
    262,388.54x = 393,486.41 × 93,863.18
  4. Step 4: Simplify right side
    262,388.54x = 36,933,883,292.64
  5. Step 5: Solve for x
    x = 36,933,883,292.64/262,388.54
  6. Step 6: Final answer
    x = 140,760.28

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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.