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Finding the Fourth Proportional to 453,393.72, 680,046.84 and 137,853.36

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Solution

The fourth proportional to 453,393.72, 680,046.84 and 137,853.36 is: 206,766.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    453,393.72 : 680,046.84 = 137,853.36 : x
  2. Step 2: Convert to fraction form
    453,393.72/680,046.84 = 137,853.36/x
  3. Step 3: Cross multiply
    453,393.72x = 680,046.84 × 137,853.36
  4. Step 4: Simplify right side
    453,393.72x = 93,746,741,851.38
  5. Step 5: Solve for x
    x = 93,746,741,851.38/453,393.72
  6. Step 6: Final answer
    x = 206,766.74

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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.