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Finding the Fourth Proportional to 80,328.97, 120,492.78 and 24,168.79

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Solution

The fourth proportional to 80,328.97, 120,492.78 and 24,168.79 is: 36,252.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,328.97 : 120,492.78 = 24,168.79 : x
  2. Step 2: Convert to fraction form
    80,328.97/120,492.78 = 24,168.79/x
  3. Step 3: Cross multiply
    80,328.97x = 120,492.78 × 24,168.79
  4. Step 4: Simplify right side
    80,328.97x = 2,912,164,696.34
  5. Step 5: Solve for x
    x = 2,912,164,696.34/80,328.97
  6. Step 6: Final answer
    x = 36,252.98

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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.