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Finding the Fourth Proportional to 88,635.87, 122,362.65 and 68,447.43

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Solution

The fourth proportional to 88,635.87, 122,362.65 and 68,447.43 is: 94,492.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,635.87 : 122,362.65 = 68,447.43 : x
  2. Step 2: Convert to fraction form
    88,635.87/122,362.65 = 68,447.43/x
  3. Step 3: Cross multiply
    88,635.87x = 122,362.65 × 68,447.43
  4. Step 4: Simplify right side
    88,635.87x = 8,375,408,920.49
  5. Step 5: Solve for x
    x = 8,375,408,920.49/88,635.87
  6. Step 6: Final answer
    x = 94,492.32

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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.