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Finding the Fourth Proportional to 227,215.70, 313,520.79 and 131,703.74

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Solution

The fourth proportional to 227,215.70, 313,520.79 and 131,703.74 is: 181,729.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    227,215.70 : 313,520.79 = 131,703.74 : x
  2. Step 2: Convert to fraction form
    227,215.70/313,520.79 = 131,703.74/x
  3. Step 3: Cross multiply
    227,215.70x = 313,520.79 × 131,703.74
  4. Step 4: Simplify right side
    227,215.70x = 41,291,860,610.75
  5. Step 5: Solve for x
    x = 41,291,860,610.75/227,215.70
  6. Step 6: Final answer
    x = 181,729.79

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.