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Finding the Fourth Proportional to 256,993.19, 354,601.39 and 166,336.57

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Solution

The fourth proportional to 256,993.19, 354,601.39 and 166,336.57 is: 229,512.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    256,993.19 : 354,601.39 = 166,336.57 : x
  2. Step 2: Convert to fraction form
    256,993.19/354,601.39 = 166,336.57/x
  3. Step 3: Cross multiply
    256,993.19x = 354,601.39 × 166,336.57
  4. Step 4: Simplify right side
    256,993.19x = 58,983,178,929.83
  5. Step 5: Solve for x
    x = 58,983,178,929.83/256,993.19
  6. Step 6: Final answer
    x = 229,512.61

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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.