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Finding the Fourth Proportional to 351,354.60, 527,033.25 and 85,114.62

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Solution

The fourth proportional to 351,354.60, 527,033.25 and 85,114.62 is: 127,672.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    351,354.60 : 527,033.25 = 85,114.62 : x
  2. Step 2: Convert to fraction form
    351,354.60/527,033.25 = 85,114.62/x
  3. Step 3: Cross multiply
    351,354.60x = 527,033.25 × 85,114.62
  4. Step 4: Simplify right side
    351,354.60x = 44,858,234,801.12
  5. Step 5: Solve for x
    x = 44,858,234,801.12/351,354.60
  6. Step 6: Final answer
    x = 127,672.26

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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.