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Finding the Fourth Proportional to 352,951.70, 529,233.15 and 142,351.70

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Solution

The fourth proportional to 352,951.70, 529,233.15 and 142,351.70 is: 213,449.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    352,951.70 : 529,233.15 = 142,351.70 : x
  2. Step 2: Convert to fraction form
    352,951.70/529,233.15 = 142,351.70/x
  3. Step 3: Cross multiply
    352,951.70x = 529,233.15 × 142,351.70
  4. Step 4: Simplify right side
    352,951.70x = 75,337,238,598.86
  5. Step 5: Solve for x
    x = 75,337,238,598.86/352,951.70
  6. Step 6: Final answer
    x = 213,449.15

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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.