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Finding the Fourth Proportional to 262,474.60, 393,906.30 and 104,816.20

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Solution

The fourth proportional to 262,474.60, 393,906.30 and 104,816.20 is: 157,301.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    262,474.60 : 393,906.30 = 104,816.20 : x
  2. Step 2: Convert to fraction form
    262,474.60/393,906.30 = 104,816.20/x
  3. Step 3: Cross multiply
    262,474.60x = 393,906.30 × 104,816.20
  4. Step 4: Simplify right side
    262,474.60x = 41,287,761,522.06
  5. Step 5: Solve for x
    x = 41,287,761,522.06/262,474.60
  6. Step 6: Final answer
    x = 157,301.93

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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.