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Finding the Fourth Proportional to 104,082.63, 155,960.40 and 80,448.03

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Solution

The fourth proportional to 104,082.63, 155,960.40 and 80,448.03 is: 120,545.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,082.63 : 155,960.40 = 80,448.03 : x
  2. Step 2: Convert to fraction form
    104,082.63/155,960.40 = 80,448.03/x
  3. Step 3: Cross multiply
    104,082.63x = 155,960.40 × 80,448.03
  4. Step 4: Simplify right side
    104,082.63x = 12,546,706,938.01
  5. Step 5: Solve for x
    x = 12,546,706,938.01/104,082.63
  6. Step 6: Final answer
    x = 120,545.64

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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.