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Finding the Fourth Proportional to 73,973.37, 110,960.87 and 21,383.31

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Solution

The fourth proportional to 73,973.37, 110,960.87 and 21,383.31 is: 32,075.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,973.37 : 110,960.87 = 21,383.31 : x
  2. Step 2: Convert to fraction form
    73,973.37/110,960.87 = 21,383.31/x
  3. Step 3: Cross multiply
    73,973.37x = 110,960.87 × 21,383.31
  4. Step 4: Simplify right side
    73,973.37x = 2,372,710,958.48
  5. Step 5: Solve for x
    x = 2,372,710,958.48/73,973.37
  6. Step 6: Final answer
    x = 32,075.20

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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.