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Finding the Fourth Proportional to 271,786.99, 407,500.55 and 129,654.20

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Solution

The fourth proportional to 271,786.99, 407,500.55 and 129,654.20 is: 194,395.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    271,786.99 : 407,500.55 = 129,654.20 : x
  2. Step 2: Convert to fraction form
    271,786.99/407,500.55 = 129,654.20/x
  3. Step 3: Cross multiply
    271,786.99x = 407,500.55 × 129,654.20
  4. Step 4: Simplify right side
    271,786.99x = 52,834,158,497.18
  5. Step 5: Solve for x
    x = 52,834,158,497.18/271,786.99
  6. Step 6: Final answer
    x = 194,395.47

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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.