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Finding the Fourth Proportional to 136,956.63, 205,435.01 and 43,462.38

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Solution

The fourth proportional to 136,956.63, 205,435.01 and 43,462.38 is: 65,193.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,956.63 : 205,435.01 = 43,462.38 : x
  2. Step 2: Convert to fraction form
    136,956.63/205,435.01 = 43,462.38/x
  3. Step 3: Cross multiply
    136,956.63x = 205,435.01 × 43,462.38
  4. Step 4: Simplify right side
    136,956.63x = 8,928,694,469.92
  5. Step 5: Solve for x
    x = 8,928,694,469.92/136,956.63
  6. Step 6: Final answer
    x = 65,193.59

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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.