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Finding the Fourth Proportional to 271,915.70, 407,931.90 and 114,053.18

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Solution

The fourth proportional to 271,915.70, 407,931.90 and 114,053.18 is: 171,104.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    271,915.70 : 407,931.90 = 114,053.18 : x
  2. Step 2: Convert to fraction form
    271,915.70/407,931.90 = 114,053.18/x
  3. Step 3: Cross multiply
    271,915.70x = 407,931.90 × 114,053.18
  4. Step 4: Simplify right side
    271,915.70x = 46,525,930,418.44
  5. Step 5: Solve for x
    x = 46,525,930,418.44/271,915.70
  6. Step 6: Final answer
    x = 171,104.24

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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.