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Finding the Fourth Proportional to 211,646.44, 317,471.42 and 53,874.60

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Solution

The fourth proportional to 211,646.44, 317,471.42 and 53,874.60 is: 80,812.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,646.44 : 317,471.42 = 53,874.60 : x
  2. Step 2: Convert to fraction form
    211,646.44/317,471.42 = 53,874.60/x
  3. Step 3: Cross multiply
    211,646.44x = 317,471.42 × 53,874.60
  4. Step 4: Simplify right side
    211,646.44x = 17,103,645,763.93
  5. Step 5: Solve for x
    x = 17,103,645,763.93/211,646.44
  6. Step 6: Final answer
    x = 80,812.35

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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.