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Finding the Fourth Proportional to 80,371.74, 120,504.42 and 35,937.30

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Solution

The fourth proportional to 80,371.74, 120,504.42 and 35,937.30 is: 53,882.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,371.74 : 120,504.42 = 35,937.30 : x
  2. Step 2: Convert to fraction form
    80,371.74/120,504.42 = 35,937.30/x
  3. Step 3: Cross multiply
    80,371.74x = 120,504.42 × 35,937.30
  4. Step 4: Simplify right side
    80,371.74x = 4,330,603,492.87
  5. Step 5: Solve for x
    x = 4,330,603,492.87/80,371.74
  6. Step 6: Final answer
    x = 53,882.17

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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.