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Finding the Fourth Proportional to 172,945.96, 259,497.76 and 88,765.24

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Solution

The fourth proportional to 172,945.96, 259,497.76 and 88,765.24 is: 133,188.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,945.96 : 259,497.76 = 88,765.24 : x
  2. Step 2: Convert to fraction form
    172,945.96/259,497.76 = 88,765.24/x
  3. Step 3: Cross multiply
    172,945.96x = 259,497.76 × 88,765.24
  4. Step 4: Simplify right side
    172,945.96x = 23,034,380,945.86
  5. Step 5: Solve for x
    x = 23,034,380,945.86/172,945.96
  6. Step 6: Final answer
    x = 133,188.31

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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.