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Finding the Fourth Proportional to 73,697.88, 110,546.37 and 21,107.37

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Solution

The fourth proportional to 73,697.88, 110,546.37 and 21,107.37 is: 31,660.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,697.88 : 110,546.37 = 21,107.37 : x
  2. Step 2: Convert to fraction form
    73,697.88/110,546.37 = 21,107.37/x
  3. Step 3: Cross multiply
    73,697.88x = 110,546.37 × 21,107.37
  4. Step 4: Simplify right side
    73,697.88x = 2,333,343,133.75
  5. Step 5: Solve for x
    x = 2,333,343,133.75/73,697.88
  6. Step 6: Final answer
    x = 31,660.93

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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.