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Finding the Fourth Proportional to 261,744.96, 392,546.88 and 111,910.80

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Solution

The fourth proportional to 261,744.96, 392,546.88 and 111,910.80 is: 167,836.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    261,744.96 : 392,546.88 = 111,910.80 : x
  2. Step 2: Convert to fraction form
    261,744.96/392,546.88 = 111,910.80/x
  3. Step 3: Cross multiply
    261,744.96x = 392,546.88 × 111,910.80
  4. Step 4: Simplify right side
    261,744.96x = 43,930,235,378.30
  5. Step 5: Solve for x
    x = 43,930,235,378.30/261,744.96
  6. Step 6: Final answer
    x = 167,836.03

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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.