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Finding the Fourth Proportional to 108,609.44, 149,879.58 and 60,863.72

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Solution

The fourth proportional to 108,609.44, 149,879.58 and 60,863.72 is: 83,991.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,609.44 : 149,879.58 = 60,863.72 : x
  2. Step 2: Convert to fraction form
    108,609.44/149,879.58 = 60,863.72/x
  3. Step 3: Cross multiply
    108,609.44x = 149,879.58 × 60,863.72
  4. Step 4: Simplify right side
    108,609.44x = 9,122,228,790.84
  5. Step 5: Solve for x
    x = 9,122,228,790.84/108,609.44
  6. Step 6: Final answer
    x = 83,991.12

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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.