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Finding the Fourth Proportional to 195,940.35, 270,085.05 and 154,479.69

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Solution

The fourth proportional to 195,940.35, 270,085.05 and 154,479.69 is: 212,935.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    195,940.35 : 270,085.05 = 154,479.69 : x
  2. Step 2: Convert to fraction form
    195,940.35/270,085.05 = 154,479.69/x
  3. Step 3: Cross multiply
    195,940.35x = 270,085.05 × 154,479.69
  4. Step 4: Simplify right side
    195,940.35x = 41,722,654,797.63
  5. Step 5: Solve for x
    x = 41,722,654,797.63/195,940.35
  6. Step 6: Final answer
    x = 212,935.49

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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.