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Finding the Fourth Proportional to 333,785.23, 500,672.37 and 81,067.78

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Solution

The fourth proportional to 333,785.23, 500,672.37 and 81,067.78 is: 121,600.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    333,785.23 : 500,672.37 = 81,067.78 : x
  2. Step 2: Convert to fraction form
    333,785.23/500,672.37 = 81,067.78/x
  3. Step 3: Cross multiply
    333,785.23x = 500,672.37 × 81,067.78
  4. Step 4: Simplify right side
    333,785.23x = 40,588,397,543.24
  5. Step 5: Solve for x
    x = 40,588,397,543.24/333,785.23
  6. Step 6: Final answer
    x = 121,600.34

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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.