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Finding the Fourth Proportional to 108,091.80, 162,138.24 and 48,858.12

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Solution

The fourth proportional to 108,091.80, 162,138.24 and 48,858.12 is: 73,287.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,091.80 : 162,138.24 = 48,858.12 : x
  2. Step 2: Convert to fraction form
    108,091.80/162,138.24 = 48,858.12/x
  3. Step 3: Cross multiply
    108,091.80x = 162,138.24 × 48,858.12
  4. Step 4: Simplify right side
    108,091.80x = 7,921,769,586.51
  5. Step 5: Solve for x
    x = 7,921,769,586.51/108,091.80
  6. Step 6: Final answer
    x = 73,287.42

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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.