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Finding the Fourth Proportional to 262,107.80, 393,453.30 and 162,380.60

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Solution

The fourth proportional to 262,107.80, 393,453.30 and 162,380.60 is: 243,751.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    262,107.80 : 393,453.30 = 162,380.60 : x
  2. Step 2: Convert to fraction form
    262,107.80/393,453.30 = 162,380.60/x
  3. Step 3: Cross multiply
    262,107.80x = 393,453.30 × 162,380.60
  4. Step 4: Simplify right side
    262,107.80x = 63,889,182,925.98
  5. Step 5: Solve for x
    x = 63,889,182,925.98/262,107.80
  6. Step 6: Final answer
    x = 243,751.55

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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.