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Finding the Fourth Proportional to 172,776.80, 259,200.44 and 97,930.38

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Solution

The fourth proportional to 172,776.80, 259,200.44 and 97,930.38 is: 146,915.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,776.80 : 259,200.44 = 97,930.38 : x
  2. Step 2: Convert to fraction form
    172,776.80/259,200.44 = 97,930.38/x
  3. Step 3: Cross multiply
    172,776.80x = 259,200.44 × 97,930.38
  4. Step 4: Simplify right side
    172,776.80x = 25,383,597,585.37
  5. Step 5: Solve for x
    x = 25,383,597,585.37/172,776.80
  6. Step 6: Final answer
    x = 146,915.54

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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.