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Finding the Fourth Proportional to 108,657.84, 162,990.18 and 33,778.38

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Solution

The fourth proportional to 108,657.84, 162,990.18 and 33,778.38 is: 50,668.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,657.84 : 162,990.18 = 33,778.38 : x
  2. Step 2: Convert to fraction form
    108,657.84/162,990.18 = 33,778.38/x
  3. Step 3: Cross multiply
    108,657.84x = 162,990.18 × 33,778.38
  4. Step 4: Simplify right side
    108,657.84x = 5,505,544,236.31
  5. Step 5: Solve for x
    x = 5,505,544,236.31/108,657.84
  6. Step 6: Final answer
    x = 50,668.63

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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.