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Finding the Fourth Proportional to 271,316.60, 407,007.54 and 130,976.60

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Solution

The fourth proportional to 271,316.60, 407,007.54 and 130,976.60 is: 196,480.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    271,316.60 : 407,007.54 = 130,976.60 : x
  2. Step 2: Convert to fraction form
    271,316.60/407,007.54 = 130,976.60/x
  3. Step 3: Cross multiply
    271,316.60x = 407,007.54 × 130,976.60
  4. Step 4: Simplify right side
    271,316.60x = 53,308,463,763.56
  5. Step 5: Solve for x
    x = 53,308,463,763.56/271,316.60
  6. Step 6: Final answer
    x = 196,480.66

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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.