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Finding the Fourth Proportional to 276,245.64, 414,286.65 and 118,436.58

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Solution

The fourth proportional to 276,245.64, 414,286.65 and 118,436.58 is: 177,619.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    276,245.64 : 414,286.65 = 118,436.58 : x
  2. Step 2: Convert to fraction form
    276,245.64/414,286.65 = 118,436.58/x
  3. Step 3: Cross multiply
    276,245.64x = 414,286.65 × 118,436.58
  4. Step 4: Simplify right side
    276,245.64x = 49,066,693,965.66
  5. Step 5: Solve for x
    x = 49,066,693,965.66/276,245.64
  6. Step 6: Final answer
    x = 177,619.80

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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.