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Finding the Fourth Proportional to 231,793.06, 319,847.97 and 129,804.34

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Solution

The fourth proportional to 231,793.06, 319,847.97 and 129,804.34 is: 179,115.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    231,793.06 : 319,847.97 = 129,804.34 : x
  2. Step 2: Convert to fraction form
    231,793.06/319,847.97 = 129,804.34/x
  3. Step 3: Cross multiply
    231,793.06x = 319,847.97 × 129,804.34
  4. Step 4: Simplify right side
    231,793.06x = 41,517,654,646.19
  5. Step 5: Solve for x
    x = 41,517,654,646.19/231,793.06
  6. Step 6: Final answer
    x = 179,115.18

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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.