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Finding the Fourth Proportional to 242,579.40, 363,696.30 and 92,761.80

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Solution

The fourth proportional to 242,579.40, 363,696.30 and 92,761.80 is: 139,076.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    242,579.40 : 363,696.30 = 92,761.80 : x
  2. Step 2: Convert to fraction form
    242,579.40/363,696.30 = 92,761.80/x
  3. Step 3: Cross multiply
    242,579.40x = 363,696.30 × 92,761.80
  4. Step 4: Simplify right side
    242,579.40x = 33,737,123,441.34
  5. Step 5: Solve for x
    x = 33,737,123,441.34/242,579.40
  6. Step 6: Final answer
    x = 139,076.62

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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.