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Finding the Fourth Proportional to 317,324.62, 476,453.49 and 130,700.62

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Solution

The fourth proportional to 317,324.62, 476,453.49 and 130,700.62 is: 196,243.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    317,324.62 : 476,453.49 = 130,700.62 : x
  2. Step 2: Convert to fraction form
    317,324.62/476,453.49 = 130,700.62/x
  3. Step 3: Cross multiply
    317,324.62x = 476,453.49 × 130,700.62
  4. Step 4: Simplify right side
    317,324.62x = 62,272,766,544.16
  5. Step 5: Solve for x
    x = 62,272,766,544.16/317,324.62
  6. Step 6: Final answer
    x = 196,243.10

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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.