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Finding the Fourth Proportional to 269,143.16, 403,619.96 and 79,553.04

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Solution

The fourth proportional to 269,143.16, 403,619.96 and 79,553.04 is: 119,301.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    269,143.16 : 403,619.96 = 79,553.04 : x
  2. Step 2: Convert to fraction form
    269,143.16/403,619.96 = 79,553.04/x
  3. Step 3: Cross multiply
    269,143.16x = 403,619.96 × 79,553.04
  4. Step 4: Simplify right side
    269,143.16x = 32,109,193,507.99
  5. Step 5: Solve for x
    x = 32,109,193,507.99/269,143.16
  6. Step 6: Final answer
    x = 119,301.54

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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.