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Finding the Fourth Proportional to 172,702.43, 236,603.20 and 166,230.64

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Solution

The fourth proportional to 172,702.43, 236,603.20 and 166,230.64 is: 227,736.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,702.43 : 236,603.20 = 166,230.64 : x
  2. Step 2: Convert to fraction form
    172,702.43/236,603.20 = 166,230.64/x
  3. Step 3: Cross multiply
    172,702.43x = 236,603.20 × 166,230.64
  4. Step 4: Simplify right side
    172,702.43x = 39,330,701,362.05
  5. Step 5: Solve for x
    x = 39,330,701,362.05/172,702.43
  6. Step 6: Final answer
    x = 227,736.82

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Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.