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Finding the Fourth Proportional to 53,169.72, 73,371.96 and 30,492.96

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Solution

The fourth proportional to 53,169.72, 73,371.96 and 30,492.96 is: 42,078.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,169.72 : 73,371.96 = 30,492.96 : x
  2. Step 2: Convert to fraction form
    53,169.72/73,371.96 = 30,492.96/x
  3. Step 3: Cross multiply
    53,169.72x = 73,371.96 × 30,492.96
  4. Step 4: Simplify right side
    53,169.72x = 2,237,328,241.40
  5. Step 5: Solve for x
    x = 2,237,328,241.40/53,169.72
  6. Step 6: Final answer
    x = 42,078.99

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.