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Finding the Fourth Proportional to 260,751.06, 391,123.29 and 83,255.82

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Solution

The fourth proportional to 260,751.06, 391,123.29 and 83,255.82 is: 124,882.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    260,751.06 : 391,123.29 = 83,255.82 : x
  2. Step 2: Convert to fraction form
    260,751.06/391,123.29 = 83,255.82/x
  3. Step 3: Cross multiply
    260,751.06x = 391,123.29 × 83,255.82
  4. Step 4: Simplify right side
    260,751.06x = 32,563,290,230.05
  5. Step 5: Solve for x
    x = 32,563,290,230.05/260,751.06
  6. Step 6: Final answer
    x = 124,882.68

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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.