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Finding the Fourth Proportional to 217,692.73, 300,388.76 and 120,883.42

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Solution

The fourth proportional to 217,692.73, 300,388.76 and 120,883.42 is: 166,804.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    217,692.73 : 300,388.76 = 120,883.42 : x
  2. Step 2: Convert to fraction form
    217,692.73/300,388.76 = 120,883.42/x
  3. Step 3: Cross multiply
    217,692.73x = 300,388.76 × 120,883.42
  4. Step 4: Simplify right side
    217,692.73x = 36,312,020,272.03
  5. Step 5: Solve for x
    x = 36,312,020,272.03/217,692.73
  6. Step 6: Final answer
    x = 166,804.01

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1.5x scale

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.