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Finding the Fourth Proportional to 80,673.68, 121,010.52 and 25,274

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Solution

The fourth proportional to 80,673.68, 121,010.52 and 25,274 is: 37,911

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,673.68 : 121,010.52 = 25,274 : x
  2. Step 2: Convert to fraction form
    80,673.68/121,010.52 = 25,274/x
  3. Step 3: Cross multiply
    80,673.68x = 121,010.52 × 25,274
  4. Step 4: Simplify right side
    80,673.68x = 3,058,419,882.48
  5. Step 5: Solve for x
    x = 3,058,419,882.48/80,673.68
  6. Step 6: Final answer
    x = 37,911

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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.