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Finding the Fourth Proportional to 245,771.72, 339,269.58 and 165,245.84

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Solution

The fourth proportional to 245,771.72, 339,269.58 and 165,245.84 is: 228,109.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    245,771.72 : 339,269.58 = 165,245.84 : x
  2. Step 2: Convert to fraction form
    245,771.72/339,269.58 = 165,245.84/x
  3. Step 3: Cross multiply
    245,771.72x = 339,269.58 × 165,245.84
  4. Step 4: Simplify right side
    245,771.72x = 56,062,886,733.55
  5. Step 5: Solve for x
    x = 56,062,886,733.55/245,771.72
  6. Step 6: Final answer
    x = 228,109.59

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.