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Finding the Fourth Proportional to 228,758.64, 343,183.76 and 79,004.40

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Solution

The fourth proportional to 228,758.64, 343,183.76 and 79,004.40 is: 118,522.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    228,758.64 : 343,183.76 = 79,004.40 : x
  2. Step 2: Convert to fraction form
    228,758.64/343,183.76 = 79,004.40/x
  3. Step 3: Cross multiply
    228,758.64x = 343,183.76 × 79,004.40
  4. Step 4: Simplify right side
    228,758.64x = 27,113,027,048.54
  5. Step 5: Solve for x
    x = 27,113,027,048.54/228,758.64
  6. Step 6: Final answer
    x = 118,522.42

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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.