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Finding the Fourth Proportional to 261,694.80, 393,125.40 and 251,067.60

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Solution

The fourth proportional to 261,694.80, 393,125.40 and 251,067.60 is: 377,160.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    261,694.80 : 393,125.40 = 251,067.60 : x
  2. Step 2: Convert to fraction form
    261,694.80/393,125.40 = 251,067.60/x
  3. Step 3: Cross multiply
    261,694.80x = 393,125.40 × 251,067.60
  4. Step 4: Simplify right side
    261,694.80x = 98,701,050,677.04
  5. Step 5: Solve for x
    x = 98,701,050,677.04/261,694.80
  6. Step 6: Final answer
    x = 377,160.92

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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.