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Finding the Fourth Proportional to 73,704.82, 110,557.24 and 21,114.50

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Solution

The fourth proportional to 73,704.82, 110,557.24 and 21,114.50 is: 31,671.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,704.82 : 110,557.24 = 21,114.50 : x
  2. Step 2: Convert to fraction form
    73,704.82/110,557.24 = 21,114.50/x
  3. Step 3: Cross multiply
    73,704.82x = 110,557.24 × 21,114.50
  4. Step 4: Simplify right side
    73,704.82x = 2,334,360,843.98
  5. Step 5: Solve for x
    x = 2,334,360,843.98/73,704.82
  6. Step 6: Final answer
    x = 31,671.75

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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.