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Finding the Fourth Proportional to 347,874.32, 521,885.96 and 107,982.96

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Solution

The fourth proportional to 347,874.32, 521,885.96 and 107,982.96 is: 161,997.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    347,874.32 : 521,885.96 = 107,982.96 : x
  2. Step 2: Convert to fraction form
    347,874.32/521,885.96 = 107,982.96/x
  3. Step 3: Cross multiply
    347,874.32x = 521,885.96 × 107,982.96
  4. Step 4: Simplify right side
    347,874.32x = 56,354,787,593.90
  5. Step 5: Solve for x
    x = 56,354,787,593.90/347,874.32
  6. Step 6: Final answer
    x = 161,997.55

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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.