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Finding the Fourth Proportional to 108,866.58, 163,299.89 and 33,993.15

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Solution

The fourth proportional to 108,866.58, 163,299.89 and 33,993.15 is: 50,989.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,866.58 : 163,299.89 = 33,993.15 : x
  2. Step 2: Convert to fraction form
    108,866.58/163,299.89 = 33,993.15/x
  3. Step 3: Cross multiply
    108,866.58x = 163,299.89 × 33,993.15
  4. Step 4: Simplify right side
    108,866.58x = 5,551,077,655.75
  5. Step 5: Solve for x
    x = 5,551,077,655.75/108,866.58
  6. Step 6: Final answer
    x = 50,989.73

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Double scale
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Similar ratio
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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.