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Finding the Fourth Proportional to 163,298.56, 225,349.96 and 91,676.76

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Solution

The fourth proportional to 163,298.56, 225,349.96 and 91,676.76 is: 126,512.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    163,298.56 : 225,349.96 = 91,676.76 : x
  2. Step 2: Convert to fraction form
    163,298.56/225,349.96 = 91,676.76/x
  3. Step 3: Cross multiply
    163,298.56x = 225,349.96 × 91,676.76
  4. Step 4: Simplify right side
    163,298.56x = 20,659,354,198.93
  5. Step 5: Solve for x
    x = 20,659,354,198.93/163,298.56
  6. Step 6: Final answer
    x = 126,512.78

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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.