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Finding the Fourth Proportional to 351,446.80, 527,221.40 and 114,800.40

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Solution

The fourth proportional to 351,446.80, 527,221.40 and 114,800.40 is: 172,217.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    351,446.80 : 527,221.40 = 114,800.40 : x
  2. Step 2: Convert to fraction form
    351,446.80/527,221.40 = 114,800.40/x
  3. Step 3: Cross multiply
    351,446.80x = 527,221.40 × 114,800.40
  4. Step 4: Simplify right side
    351,446.80x = 60,525,227,608.56
  5. Step 5: Solve for x
    x = 60,525,227,608.56/351,446.80
  6. Step 6: Final answer
    x = 172,217.32

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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.