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Finding the Fourth Proportional to 262,870.20, 394,305.30 and 96,636.60

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Solution

The fourth proportional to 262,870.20, 394,305.30 and 96,636.60 is: 144,954.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    262,870.20 : 394,305.30 = 96,636.60 : x
  2. Step 2: Convert to fraction form
    262,870.20/394,305.30 = 96,636.60/x
  3. Step 3: Cross multiply
    262,870.20x = 394,305.30 × 96,636.60
  4. Step 4: Simplify right side
    262,870.20x = 38,104,323,553.98
  5. Step 5: Solve for x
    x = 38,104,323,553.98/262,870.20
  6. Step 6: Final answer
    x = 144,954.90

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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.