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Finding the Fourth Proportional to 167,141.70, 230,654.19 and 90,660.60

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Solution

The fourth proportional to 167,141.70, 230,654.19 and 90,660.60 is: 125,110.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    167,141.70 : 230,654.19 = 90,660.60 : x
  2. Step 2: Convert to fraction form
    167,141.70/230,654.19 = 90,660.60/x
  3. Step 3: Cross multiply
    167,141.70x = 230,654.19 × 90,660.60
  4. Step 4: Simplify right side
    167,141.70x = 20,911,247,257.91
  5. Step 5: Solve for x
    x = 20,911,247,257.91/167,141.70
  6. Step 6: Final answer
    x = 125,110.89

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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.