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Finding the Fourth Proportional to 168,609.96, 232,790.22 and 108,206.64

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Solution

The fourth proportional to 168,609.96, 232,790.22 and 108,206.64 is: 149,394.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,609.96 : 232,790.22 = 108,206.64 : x
  2. Step 2: Convert to fraction form
    168,609.96/232,790.22 = 108,206.64/x
  3. Step 3: Cross multiply
    168,609.96x = 232,790.22 × 108,206.64
  4. Step 4: Simplify right side
    168,609.96x = 25,189,447,531.06
  5. Step 5: Solve for x
    x = 25,189,447,531.06/168,609.96
  6. Step 6: Final answer
    x = 149,394.78

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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.