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Finding the Fourth Proportional to 125,679.89, 173,441.19 and 68,322.47

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Solution

The fourth proportional to 125,679.89, 173,441.19 and 68,322.47 is: 94,286.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,679.89 : 173,441.19 = 68,322.47 : x
  2. Step 2: Convert to fraction form
    125,679.89/173,441.19 = 68,322.47/x
  3. Step 3: Cross multiply
    125,679.89x = 173,441.19 × 68,322.47
  4. Step 4: Simplify right side
    125,679.89x = 11,849,929,633.33
  5. Step 5: Solve for x
    x = 11,849,929,633.33/125,679.89
  6. Step 6: Final answer
    x = 94,286.60

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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.