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Finding the Fourth Proportional to 169,694.40, 254,023.20 and 132,369.60

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Solution

The fourth proportional to 169,694.40, 254,023.20 and 132,369.60 is: 198,150.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    169,694.40 : 254,023.20 = 132,369.60 : x
  2. Step 2: Convert to fraction form
    169,694.40/254,023.20 = 132,369.60/x
  3. Step 3: Cross multiply
    169,694.40x = 254,023.20 × 132,369.60
  4. Step 4: Simplify right side
    169,694.40x = 33,624,949,374.72
  5. Step 5: Solve for x
    x = 33,624,949,374.72/169,694.40
  6. Step 6: Final answer
    x = 198,150.02

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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.