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Finding the Fourth Proportional to 271,706.80, 407,398.20 and 166,601.20

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Solution

The fourth proportional to 271,706.80, 407,398.20 and 166,601.20 is: 249,802.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    271,706.80 : 407,398.20 = 166,601.20 : x
  2. Step 2: Convert to fraction form
    271,706.80/407,398.20 = 166,601.20/x
  3. Step 3: Cross multiply
    271,706.80x = 407,398.20 × 166,601.20
  4. Step 4: Simplify right side
    271,706.80x = 67,873,028,997.84
  5. Step 5: Solve for x
    x = 67,873,028,997.84/271,706.80
  6. Step 6: Final answer
    x = 249,802.47

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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.