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Finding the Fourth Proportional to 73,692.63, 110,538.48 and 21,102.11

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Solution

The fourth proportional to 73,692.63, 110,538.48 and 21,102.11 is: 31,653.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,692.63 : 110,538.48 = 21,102.11 : x
  2. Step 2: Convert to fraction form
    73,692.63/110,538.48 = 21,102.11/x
  3. Step 3: Cross multiply
    73,692.63x = 110,538.48 × 21,102.11
  4. Step 4: Simplify right side
    73,692.63x = 2,332,595,440.54
  5. Step 5: Solve for x
    x = 2,332,595,440.54/73,692.63
  6. Step 6: Final answer
    x = 31,653.04

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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.