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Finding the Fourth Proportional to 271,446.59, 407,080.74 and 91,483.73

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Solution

The fourth proportional to 271,446.59, 407,080.74 and 91,483.73 is: 137,195.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    271,446.59 : 407,080.74 = 91,483.73 : x
  2. Step 2: Convert to fraction form
    271,446.59/407,080.74 = 91,483.73/x
  3. Step 3: Cross multiply
    271,446.59x = 407,080.74 × 91,483.73
  4. Step 4: Simplify right side
    271,446.59x = 37,241,263,825.98
  5. Step 5: Solve for x
    x = 37,241,263,825.98/271,446.59
  6. Step 6: Final answer
    x = 137,195.55

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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.