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Finding the Fourth Proportional to 211,604.33, 317,183.33 and 69,412.47

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Solution

The fourth proportional to 211,604.33, 317,183.33 and 69,412.47 is: 104,045.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,604.33 : 317,183.33 = 69,412.47 : x
  2. Step 2: Convert to fraction form
    211,604.33/317,183.33 = 69,412.47/x
  3. Step 3: Cross multiply
    211,604.33x = 317,183.33 × 69,412.47
  4. Step 4: Simplify right side
    211,604.33x = 22,016,479,146.38
  5. Step 5: Solve for x
    x = 22,016,479,146.38/211,604.33
  6. Step 6: Final answer
    x = 104,045.51

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1.5x scale

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.