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Finding the Fourth Proportional to 168,790.76, 232,745.77 and 108,338.57

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Solution

The fourth proportional to 168,790.76, 232,745.77 and 108,338.57 is: 149,388.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,790.76 : 232,745.77 = 108,338.57 : x
  2. Step 2: Convert to fraction form
    168,790.76/232,745.77 = 108,338.57/x
  3. Step 3: Cross multiply
    168,790.76x = 232,745.77 × 108,338.57
  4. Step 4: Simplify right side
    168,790.76x = 25,215,343,895.35
  5. Step 5: Solve for x
    x = 25,215,343,895.35/168,790.76
  6. Step 6: Final answer
    x = 149,388.18

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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.