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Finding the Fourth Proportional to 140,673, 211,061.34 and 74,110.44

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Solution

The fourth proportional to 140,673, 211,061.34 and 74,110.44 is: 111,192.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,673 : 211,061.34 = 74,110.44 : x
  2. Step 2: Convert to fraction form
    140,673/211,061.34 = 74,110.44/x
  3. Step 3: Cross multiply
    140,673x = 211,061.34 × 74,110.44
  4. Step 4: Simplify right side
    140,673x = 15,641,848,774.39
  5. Step 5: Solve for x
    x = 15,641,848,774.39/140,673
  6. Step 6: Final answer
    x = 111,192.97

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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.