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Finding the Fourth Proportional to 132,361.63, 198,567.05 and 43,621.37

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Solution

The fourth proportional to 132,361.63, 198,567.05 and 43,621.37 is: 65,440.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,361.63 : 198,567.05 = 43,621.37 : x
  2. Step 2: Convert to fraction form
    132,361.63/198,567.05 = 43,621.37/x
  3. Step 3: Cross multiply
    132,361.63x = 198,567.05 × 43,621.37
  4. Step 4: Simplify right side
    132,361.63x = 8,661,766,291.54
  5. Step 5: Solve for x
    x = 8,661,766,291.54/132,361.63
  6. Step 6: Final answer
    x = 65,440.16

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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.