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Finding the Fourth Proportional to 352,768.44, 529,149.72 and 142,403.16

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Solution

The fourth proportional to 352,768.44, 529,149.72 and 142,403.16 is: 213,603.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    352,768.44 : 529,149.72 = 142,403.16 : x
  2. Step 2: Convert to fraction form
    352,768.44/529,149.72 = 142,403.16/x
  3. Step 3: Cross multiply
    352,768.44x = 529,149.72 × 142,403.16
  4. Step 4: Simplify right side
    352,768.44x = 75,352,592,241.12
  5. Step 5: Solve for x
    x = 75,352,592,241.12/352,768.44
  6. Step 6: Final answer
    x = 213,603.55

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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.