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Finding the Fourth Proportional to 166,834.95, 250,264.11 and 66,995.21

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Solution

The fourth proportional to 166,834.95, 250,264.11 and 66,995.21 is: 100,497.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    166,834.95 : 250,264.11 = 66,995.21 : x
  2. Step 2: Convert to fraction form
    166,834.95/250,264.11 = 66,995.21/x
  3. Step 3: Cross multiply
    166,834.95x = 250,264.11 × 66,995.21
  4. Step 4: Simplify right side
    166,834.95x = 16,766,497,268.47
  5. Step 5: Solve for x
    x = 16,766,497,268.47/166,834.95
  6. Step 6: Final answer
    x = 100,497.51

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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.