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Finding the Fourth Proportional to 347,894.22, 521,906.94 and 111,173.34

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Solution

The fourth proportional to 347,894.22, 521,906.94 and 111,173.34 is: 166,780.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    347,894.22 : 521,906.94 = 111,173.34 : x
  2. Step 2: Convert to fraction form
    347,894.22/521,906.94 = 111,173.34/x
  3. Step 3: Cross multiply
    347,894.22x = 521,906.94 × 111,173.34
  4. Step 4: Simplify right side
    347,894.22x = 58,022,137,688.98
  5. Step 5: Solve for x
    x = 58,022,137,688.98/347,894.22
  6. Step 6: Final answer
    x = 166,780.98

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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.