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Finding the Fourth Proportional to 150,611.92, 207,982.68 and 96,991.12

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Solution

The fourth proportional to 150,611.92, 207,982.68 and 96,991.12 is: 133,936.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    150,611.92 : 207,982.68 = 96,991.12 : x
  2. Step 2: Convert to fraction form
    150,611.92/207,982.68 = 96,991.12/x
  3. Step 3: Cross multiply
    150,611.92x = 207,982.68 × 96,991.12
  4. Step 4: Simplify right side
    150,611.92x = 20,172,473,073.80
  5. Step 5: Solve for x
    x = 20,172,473,073.80/150,611.92
  6. Step 6: Final answer
    x = 133,936.76

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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.