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Finding the Fourth Proportional to 71,143.91, 106,720.04 and 26,771.04

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Solution

The fourth proportional to 71,143.91, 106,720.04 and 26,771.04 is: 40,158.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,143.91 : 106,720.04 = 26,771.04 : x
  2. Step 2: Convert to fraction form
    71,143.91/106,720.04 = 26,771.04/x
  3. Step 3: Cross multiply
    71,143.91x = 106,720.04 × 26,771.04
  4. Step 4: Simplify right side
    71,143.91x = 2,857,006,325.79
  5. Step 5: Solve for x
    x = 2,857,006,325.79/71,143.91
  6. Step 6: Final answer
    x = 40,158.13

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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.