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Finding the Fourth Proportional to 262,543.80, 394,107.30 and 162,816.60

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Solution

The fourth proportional to 262,543.80, 394,107.30 and 162,816.60 is: 244,405.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    262,543.80 : 394,107.30 = 162,816.60 : x
  2. Step 2: Convert to fraction form
    262,543.80/394,107.30 = 162,816.60/x
  3. Step 3: Cross multiply
    262,543.80x = 394,107.30 × 162,816.60
  4. Step 4: Simplify right side
    262,543.80x = 64,167,210,621.18
  5. Step 5: Solve for x
    x = 64,167,210,621.18/262,543.80
  6. Step 6: Final answer
    x = 244,405.74

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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.