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Finding the Fourth Proportional to 352,310.57, 528,464.42 and 127,618.42

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Solution

The fourth proportional to 352,310.57, 528,464.42 and 127,618.42 is: 191,427.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    352,310.57 : 528,464.42 = 127,618.42 : x
  2. Step 2: Convert to fraction form
    352,310.57/528,464.42 = 127,618.42/x
  3. Step 3: Cross multiply
    352,310.57x = 528,464.42 × 127,618.42
  4. Step 4: Simplify right side
    352,310.57x = 67,441,794,306.62
  5. Step 5: Solve for x
    x = 67,441,794,306.62/352,310.57
  6. Step 6: Final answer
    x = 191,427.11

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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.