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Finding the Fourth Proportional to 218,680.92, 301,692.06 and 133,650.36

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Solution

The fourth proportional to 218,680.92, 301,692.06 and 133,650.36 is: 184,383.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,680.92 : 301,692.06 = 133,650.36 : x
  2. Step 2: Convert to fraction form
    218,680.92/301,692.06 = 133,650.36/x
  3. Step 3: Cross multiply
    218,680.92x = 301,692.06 × 133,650.36
  4. Step 4: Simplify right side
    218,680.92x = 40,321,252,428.14
  5. Step 5: Solve for x
    x = 40,321,252,428.14/218,680.92
  6. Step 6: Final answer
    x = 184,383.95

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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.