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Finding the Fourth Proportional to 166,792.70, 230,172.20 and 90,310.48

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Solution

The fourth proportional to 166,792.70, 230,172.20 and 90,310.48 is: 124,627.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    166,792.70 : 230,172.20 = 90,310.48 : x
  2. Step 2: Convert to fraction form
    166,792.70/230,172.20 = 90,310.48/x
  3. Step 3: Cross multiply
    166,792.70x = 230,172.20 × 90,310.48
  4. Step 4: Simplify right side
    166,792.70x = 20,786,961,864.66
  5. Step 5: Solve for x
    x = 20,786,961,864.66/166,792.70
  6. Step 6: Final answer
    x = 124,627.53

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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.