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Finding the Fourth Proportional to 211,463.97, 317,091 and 67,350.99

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Solution

The fourth proportional to 211,463.97, 317,091 and 67,350.99 is: 100,993.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,463.97 : 317,091 = 67,350.99 : x
  2. Step 2: Convert to fraction form
    211,463.97/317,091 = 67,350.99/x
  3. Step 3: Cross multiply
    211,463.97x = 317,091 × 67,350.99
  4. Step 4: Simplify right side
    211,463.97x = 21,356,392,770.09
  5. Step 5: Solve for x
    x = 21,356,392,770.09/211,463.97
  6. Step 6: Final answer
    x = 100,993.06

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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.