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Finding the Fourth Proportional to 169,628.56, 254,055.30 and 80,944.34

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Solution

The fourth proportional to 169,628.56, 254,055.30 and 80,944.34 is: 121,231.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    169,628.56 : 254,055.30 = 80,944.34 : x
  2. Step 2: Convert to fraction form
    169,628.56/254,055.30 = 80,944.34/x
  3. Step 3: Cross multiply
    169,628.56x = 254,055.30 × 80,944.34
  4. Step 4: Simplify right side
    169,628.56x = 20,564,339,956.46
  5. Step 5: Solve for x
    x = 20,564,339,956.46/169,628.56
  6. Step 6: Final answer
    x = 121,231.59

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.