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Finding the Fourth Proportional to 248,691.90, 373,130.21 and 172,750.42

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Solution

The fourth proportional to 248,691.90, 373,130.21 and 172,750.42 is: 259,189.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    248,691.90 : 373,130.21 = 172,750.42 : x
  2. Step 2: Convert to fraction form
    248,691.90/373,130.21 = 172,750.42/x
  3. Step 3: Cross multiply
    248,691.90x = 373,130.21 × 172,750.42
  4. Step 4: Simplify right side
    248,691.90x = 64,458,399,628.44
  5. Step 5: Solve for x
    x = 64,458,399,628.44/248,691.90
  6. Step 6: Final answer
    x = 259,189.79

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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.