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Finding the Fourth Proportional to 207,961.88, 286,648.86 and 162,559.72

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Solution

The fourth proportional to 207,961.88, 286,648.86 and 162,559.72 is: 224,067.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,961.88 : 286,648.86 = 162,559.72 : x
  2. Step 2: Convert to fraction form
    207,961.88/286,648.86 = 162,559.72/x
  3. Step 3: Cross multiply
    207,961.88x = 286,648.86 × 162,559.72
  4. Step 4: Simplify right side
    207,961.88x = 46,597,558,419.92
  5. Step 5: Solve for x
    x = 46,597,558,419.92/207,961.88
  6. Step 6: Final answer
    x = 224,067.79

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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.