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Finding the Fourth Proportional to 125,784.41, 173,571.97 and 74,093.30

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Solution

The fourth proportional to 125,784.41, 173,571.97 and 74,093.30 is: 102,242.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,784.41 : 173,571.97 = 74,093.30 : x
  2. Step 2: Convert to fraction form
    125,784.41/173,571.97 = 74,093.30/x
  3. Step 3: Cross multiply
    125,784.41x = 173,571.97 × 74,093.30
  4. Step 4: Simplify right side
    125,784.41x = 12,860,519,176.94
  5. Step 5: Solve for x
    x = 12,860,519,176.94/125,784.41
  6. Step 6: Final answer
    x = 102,242.56

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.