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Finding the Fourth Proportional to 269,702.64, 372,112.92 and 162,218.88

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Solution

The fourth proportional to 269,702.64, 372,112.92 and 162,218.88 is: 223,815.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    269,702.64 : 372,112.92 = 162,218.88 : x
  2. Step 2: Convert to fraction form
    269,702.64/372,112.92 = 162,218.88/x
  3. Step 3: Cross multiply
    269,702.64x = 372,112.92 × 162,218.88
  4. Step 4: Simplify right side
    269,702.64x = 60,363,741,115.93
  5. Step 5: Solve for x
    x = 60,363,741,115.93/269,702.64
  6. Step 6: Final answer
    x = 223,815.91

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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.