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Finding the Fourth Proportional to 325,367.13, 488,036.31 and 88,709.82

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Solution

The fourth proportional to 325,367.13, 488,036.31 and 88,709.82 is: 133,060.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    325,367.13 : 488,036.31 = 88,709.82 : x
  2. Step 2: Convert to fraction form
    325,367.13/488,036.31 = 88,709.82/x
  3. Step 3: Cross multiply
    325,367.13x = 488,036.31 × 88,709.82
  4. Step 4: Simplify right side
    325,367.13x = 43,293,613,213.56
  5. Step 5: Solve for x
    x = 43,293,613,213.56/325,367.13
  6. Step 6: Final answer
    x = 133,060.81

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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.