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Finding the Fourth Proportional to 163,286.64, 225,333.59 and 91,664.82

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Solution

The fourth proportional to 163,286.64, 225,333.59 and 91,664.82 is: 126,496.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    163,286.64 : 225,333.59 = 91,664.82 : x
  2. Step 2: Convert to fraction form
    163,286.64/225,333.59 = 91,664.82/x
  3. Step 3: Cross multiply
    163,286.64x = 225,333.59 × 91,664.82
  4. Step 4: Simplify right side
    163,286.64x = 20,655,162,508.98
  5. Step 5: Solve for x
    x = 20,655,162,508.98/163,286.64
  6. Step 6: Final answer
    x = 126,496.34

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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.