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Finding the Fourth Proportional to 117,855.44, 162,527.43 and 79,180.64

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Solution

The fourth proportional to 117,855.44, 162,527.43 and 79,180.64 is: 109,193.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,855.44 : 162,527.43 = 79,180.64 : x
  2. Step 2: Convert to fraction form
    117,855.44/162,527.43 = 79,180.64/x
  3. Step 3: Cross multiply
    117,855.44x = 162,527.43 × 79,180.64
  4. Step 4: Simplify right side
    117,855.44x = 12,869,025,112.32
  5. Step 5: Solve for x
    x = 12,869,025,112.32/117,855.44
  6. Step 6: Final answer
    x = 109,193.31

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.