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Finding the Fourth Proportional to 238,879.60, 329,626.20 and 163,538.80

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Solution

The fourth proportional to 238,879.60, 329,626.20 and 163,538.80 is: 225,664.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    238,879.60 : 329,626.20 = 163,538.80 : x
  2. Step 2: Convert to fraction form
    238,879.60/329,626.20 = 163,538.80/x
  3. Step 3: Cross multiply
    238,879.60x = 329,626.20 × 163,538.80
  4. Step 4: Simplify right side
    238,879.60x = 53,906,673,196.56
  5. Step 5: Solve for x
    x = 53,906,673,196.56/238,879.60
  6. Step 6: Final answer
    x = 225,664.62

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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.