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Finding the Fourth Proportional to 324,060.62, 447,132.02 and 188,015.72

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Solution

The fourth proportional to 324,060.62, 447,132.02 and 188,015.72 is: 259,420.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    324,060.62 : 447,132.02 = 188,015.72 : x
  2. Step 2: Convert to fraction form
    324,060.62/447,132.02 = 188,015.72/x
  3. Step 3: Cross multiply
    324,060.62x = 447,132.02 × 188,015.72
  4. Step 4: Simplify right side
    324,060.62x = 84,067,845,499.62
  5. Step 5: Solve for x
    x = 84,067,845,499.62/324,060.62
  6. Step 6: Final answer
    x = 259,420.13

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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.