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Finding the Fourth Proportional to 169,633.56, 254,062.80 and 80,949.36

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Solution

The fourth proportional to 169,633.56, 254,062.80 and 80,949.36 is: 121,239.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    169,633.56 : 254,062.80 = 80,949.36 : x
  2. Step 2: Convert to fraction form
    169,633.56/254,062.80 = 80,949.36/x
  3. Step 3: Cross multiply
    169,633.56x = 254,062.80 × 80,949.36
  4. Step 4: Simplify right side
    169,633.56x = 20,566,221,059.81
  5. Step 5: Solve for x
    x = 20,566,221,059.81/169,633.56
  6. Step 6: Final answer
    x = 121,239.11

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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.