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Finding the Fourth Proportional to 451,809.54, 677,719.18 and 136,269.18

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Solution

The fourth proportional to 451,809.54, 677,719.18 and 136,269.18 is: 204,405.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    451,809.54 : 677,719.18 = 136,269.18 : x
  2. Step 2: Convert to fraction form
    451,809.54/677,719.18 = 136,269.18/x
  3. Step 3: Cross multiply
    451,809.54x = 677,719.18 × 136,269.18
  4. Step 4: Simplify right side
    451,809.54x = 92,352,236,928.87
  5. Step 5: Solve for x
    x = 92,352,236,928.87/451,809.54
  6. Step 6: Final answer
    x = 204,405.24

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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.