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Finding the Fourth Proportional to 74,102.41, 111,153.90 and 17,942.44

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Solution

The fourth proportional to 74,102.41, 111,153.90 and 17,942.44 is: 26,913.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,102.41 : 111,153.90 = 17,942.44 : x
  2. Step 2: Convert to fraction form
    74,102.41/111,153.90 = 17,942.44/x
  3. Step 3: Cross multiply
    74,102.41x = 111,153.90 × 17,942.44
  4. Step 4: Simplify right side
    74,102.41x = 1,994,371,715.32
  5. Step 5: Solve for x
    x = 1,994,371,715.32/74,102.41
  6. Step 6: Final answer
    x = 26,913.72

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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.