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Finding the Fourth Proportional to 271,660.80, 407,329.20 and 166,555.20

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Solution

The fourth proportional to 271,660.80, 407,329.20 and 166,555.20 is: 249,733.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    271,660.80 : 407,329.20 = 166,555.20 : x
  2. Step 2: Convert to fraction form
    271,660.80/407,329.20 = 166,555.20/x
  3. Step 3: Cross multiply
    271,660.80x = 407,329.20 × 166,555.20
  4. Step 4: Simplify right side
    271,660.80x = 67,842,796,371.84
  5. Step 5: Solve for x
    x = 67,842,796,371.84/271,660.80
  6. Step 6: Final answer
    x = 249,733.48

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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.