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Finding the Fourth Proportional to 271,876.67, 407,810.73 and 66,713.52

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Solution

The fourth proportional to 271,876.67, 407,810.73 and 66,713.52 is: 100,069.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    271,876.67 : 407,810.73 = 66,713.52 : x
  2. Step 2: Convert to fraction form
    271,876.67/407,810.73 = 66,713.52/x
  3. Step 3: Cross multiply
    271,876.67x = 407,810.73 × 66,713.52
  4. Step 4: Simplify right side
    271,876.67x = 27,206,489,292.07
  5. Step 5: Solve for x
    x = 27,206,489,292.07/271,876.67
  6. Step 6: Final answer
    x = 100,069.23

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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.