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Finding the Fourth Proportional to 168,680.53, 253,016.76 and 54,828.20

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Solution

The fourth proportional to 168,680.53, 253,016.76 and 54,828.20 is: 82,240.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,680.53 : 253,016.76 = 54,828.20 : x
  2. Step 2: Convert to fraction form
    168,680.53/253,016.76 = 54,828.20/x
  3. Step 3: Cross multiply
    168,680.53x = 253,016.76 × 54,828.20
  4. Step 4: Simplify right side
    168,680.53x = 13,872,454,153.17
  5. Step 5: Solve for x
    x = 13,872,454,153.17/168,680.53
  6. Step 6: Final answer
    x = 82,240.99

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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.