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Finding the Fourth Proportional to 123,860.93, 185,791.40 and 35,115.21

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Solution

The fourth proportional to 123,860.93, 185,791.40 and 35,115.21 is: 52,672.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,860.93 : 185,791.40 = 35,115.21 : x
  2. Step 2: Convert to fraction form
    123,860.93/185,791.40 = 35,115.21/x
  3. Step 3: Cross multiply
    123,860.93x = 185,791.40 × 35,115.21
  4. Step 4: Simplify right side
    123,860.93x = 6,524,103,851.62
  5. Step 5: Solve for x
    x = 6,524,103,851.62/123,860.93
  6. Step 6: Final answer
    x = 52,672.82

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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.