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Finding the Fourth Proportional to 199,517.68, 299,276.86 and 159,789.34

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Solution

The fourth proportional to 199,517.68, 299,276.86 and 159,789.34 is: 239,684.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    199,517.68 : 299,276.86 = 159,789.34 : x
  2. Step 2: Convert to fraction form
    199,517.68/299,276.86 = 159,789.34/x
  3. Step 3: Cross multiply
    199,517.68x = 299,276.86 × 159,789.34
  4. Step 4: Simplify right side
    199,517.68x = 47,821,251,936.67
  5. Step 5: Solve for x
    x = 47,821,251,936.67/199,517.68
  6. Step 6: Final answer
    x = 239,684.28

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.