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Finding the Fourth Proportional to 166,893.67, 230,311.78 and 90,411.04

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Solution

The fourth proportional to 166,893.67, 230,311.78 and 90,411.04 is: 124,766.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    166,893.67 : 230,311.78 = 90,411.04 : x
  2. Step 2: Convert to fraction form
    166,893.67/230,311.78 = 90,411.04/x
  3. Step 3: Cross multiply
    166,893.67x = 230,311.78 × 90,411.04
  4. Step 4: Simplify right side
    166,893.67x = 20,822,727,554.05
  5. Step 5: Solve for x
    x = 20,822,727,554.05/166,893.67
  6. Step 6: Final answer
    x = 124,766.43

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.