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Finding the Fourth Proportional to 329,381.40, 494,077.53 and 92,729.76

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Solution

The fourth proportional to 329,381.40, 494,077.53 and 92,729.76 is: 139,096.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    329,381.40 : 494,077.53 = 92,729.76 : x
  2. Step 2: Convert to fraction form
    329,381.40/494,077.53 = 92,729.76/x
  3. Step 3: Cross multiply
    329,381.40x = 494,077.53 × 92,729.76
  4. Step 4: Simplify right side
    329,381.40x = 45,815,690,778.29
  5. Step 5: Solve for x
    x = 45,815,690,778.29/329,381.40
  6. Step 6: Final answer
    x = 139,096.17

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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.