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Finding the Fourth Proportional to 208,832.80, 312,730.80 and 167,360.80

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Solution

The fourth proportional to 208,832.80, 312,730.80 and 167,360.80 is: 250,625.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,832.80 : 312,730.80 = 167,360.80 : x
  2. Step 2: Convert to fraction form
    208,832.80/312,730.80 = 167,360.80/x
  3. Step 3: Cross multiply
    208,832.80x = 312,730.80 × 167,360.80
  4. Step 4: Simplify right side
    208,832.80x = 52,338,876,872.64
  5. Step 5: Solve for x
    x = 52,338,876,872.64/208,832.80
  6. Step 6: Final answer
    x = 250,625.75

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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.