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Finding the Fourth Proportional to 123,494.88, 185,222.93 and 39,243.95

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Solution

The fourth proportional to 123,494.88, 185,222.93 and 39,243.95 is: 58,859.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,494.88 : 185,222.93 = 39,243.95 : x
  2. Step 2: Convert to fraction form
    123,494.88/185,222.93 = 39,243.95/x
  3. Step 3: Cross multiply
    123,494.88x = 185,222.93 × 39,243.95
  4. Step 4: Simplify right side
    123,494.88x = 7,268,878,281.44
  5. Step 5: Solve for x
    x = 7,268,878,281.44/123,494.88
  6. Step 6: Final answer
    x = 58,859.75

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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.