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Finding the Fourth Proportional to 43,770.85, 65,239.90 and 41,279.49

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Solution

The fourth proportional to 43,770.85, 65,239.90 and 41,279.49 is: 61,526.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,770.85 : 65,239.90 = 41,279.49 : x
  2. Step 2: Convert to fraction form
    43,770.85/65,239.90 = 41,279.49/x
  3. Step 3: Cross multiply
    43,770.85x = 65,239.90 × 41,279.49
  4. Step 4: Simplify right side
    43,770.85x = 2,693,069,696.45
  5. Step 5: Solve for x
    x = 2,693,069,696.45/43,770.85
  6. Step 6: Final answer
    x = 61,526.56

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.