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Finding the Fourth Proportional to 235,916.20, 353,183.10 and 208,268.20

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Solution

The fourth proportional to 235,916.20, 353,183.10 and 208,268.20 is: 311,792.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    235,916.20 : 353,183.10 = 208,268.20 : x
  2. Step 2: Convert to fraction form
    235,916.20/353,183.10 = 208,268.20/x
  3. Step 3: Cross multiply
    235,916.20x = 353,183.10 × 208,268.20
  4. Step 4: Simplify right side
    235,916.20x = 73,556,808,507.42
  5. Step 5: Solve for x
    x = 73,556,808,507.42/235,916.20
  6. Step 6: Final answer
    x = 311,792.10

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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.