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Finding the Fourth Proportional to 179,436.80, 268,924.80 and 137,676.80

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Solution

The fourth proportional to 179,436.80, 268,924.80 and 137,676.80 is: 206,338.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    179,436.80 : 268,924.80 = 137,676.80 : x
  2. Step 2: Convert to fraction form
    179,436.80/268,924.80 = 137,676.80/x
  3. Step 3: Cross multiply
    179,436.80x = 268,924.80 × 137,676.80
  4. Step 4: Simplify right side
    179,436.80x = 37,024,705,904.64
  5. Step 5: Solve for x
    x = 37,024,705,904.64/179,436.80
  6. Step 6: Final answer
    x = 206,338.42

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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.