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Finding the Fourth Proportional to 347,874.96, 521,816.04 and 111,212.40

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Solution

The fourth proportional to 347,874.96, 521,816.04 and 111,212.40 is: 166,819.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    347,874.96 : 521,816.04 = 111,212.40 : x
  2. Step 2: Convert to fraction form
    347,874.96/521,816.04 = 111,212.40/x
  3. Step 3: Cross multiply
    347,874.96x = 521,816.04 × 111,212.40
  4. Step 4: Simplify right side
    347,874.96x = 58,032,414,166.90
  5. Step 5: Solve for x
    x = 58,032,414,166.90/347,874.96
  6. Step 6: Final answer
    x = 166,819.75

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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.