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Finding the Fourth Proportional to 67,709.94, 101,581.30 and 20,324.94

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Solution

The fourth proportional to 67,709.94, 101,581.30 and 20,324.94 is: 30,492.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,709.94 : 101,581.30 = 20,324.94 : x
  2. Step 2: Convert to fraction form
    67,709.94/101,581.30 = 20,324.94/x
  3. Step 3: Cross multiply
    67,709.94x = 101,581.30 × 20,324.94
  4. Step 4: Simplify right side
    67,709.94x = 2,064,633,827.62
  5. Step 5: Solve for x
    x = 2,064,633,827.62/67,709.94
  6. Step 6: Final answer
    x = 30,492.33

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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.