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Finding the Fourth Proportional to 163,585.44, 225,770.76 and 91,969.92

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Solution

The fourth proportional to 163,585.44, 225,770.76 and 91,969.92 is: 126,931.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    163,585.44 : 225,770.76 = 91,969.92 : x
  2. Step 2: Convert to fraction form
    163,585.44/225,770.76 = 91,969.92/x
  3. Step 3: Cross multiply
    163,585.44x = 225,770.76 × 91,969.92
  4. Step 4: Simplify right side
    163,585.44x = 20,764,118,735.54
  5. Step 5: Solve for x
    x = 20,764,118,735.54/163,585.44
  6. Step 6: Final answer
    x = 126,931.34

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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.