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Finding the Fourth Proportional to 256,496.62, 353,954.37 and 141,769.39

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Solution

The fourth proportional to 256,496.62, 353,954.37 and 141,769.39 is: 195,635.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    256,496.62 : 353,954.37 = 141,769.39 : x
  2. Step 2: Convert to fraction form
    256,496.62/353,954.37 = 141,769.39/x
  3. Step 3: Cross multiply
    256,496.62x = 353,954.37 × 141,769.39
  4. Step 4: Simplify right side
    256,496.62x = 50,179,895,122.73
  5. Step 5: Solve for x
    x = 50,179,895,122.73/256,496.62
  6. Step 6: Final answer
    x = 195,635.70

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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.