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Finding the Fourth Proportional to 252,676.86, 379,069.79 and 72,761.08

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Solution

The fourth proportional to 252,676.86, 379,069.79 and 72,761.08 is: 109,157.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    252,676.86 : 379,069.79 = 72,761.08 : x
  2. Step 2: Convert to fraction form
    252,676.86/379,069.79 = 72,761.08/x
  3. Step 3: Cross multiply
    252,676.86x = 379,069.79 × 72,761.08
  4. Step 4: Simplify right side
    252,676.86x = 27,581,527,315.77
  5. Step 5: Solve for x
    x = 27,581,527,315.77/252,676.86
  6. Step 6: Final answer
    x = 109,157.31

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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.