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Finding the Fourth Proportional to 123,082.80, 184,624.20 and 39,976.80

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Solution

The fourth proportional to 123,082.80, 184,624.20 and 39,976.80 is: 59,965.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,082.80 : 184,624.20 = 39,976.80 : x
  2. Step 2: Convert to fraction form
    123,082.80/184,624.20 = 39,976.80/x
  3. Step 3: Cross multiply
    123,082.80x = 184,624.20 × 39,976.80
  4. Step 4: Simplify right side
    123,082.80x = 7,380,684,718.56
  5. Step 5: Solve for x
    x = 7,380,684,718.56/123,082.80
  6. Step 6: Final answer
    x = 59,965.20

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1.5x scale

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.