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Finding the Fourth Proportional to 252,099.50, 378,149.24 and 172,973.84

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Solution

The fourth proportional to 252,099.50, 378,149.24 and 172,973.84 is: 259,460.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    252,099.50 : 378,149.24 = 172,973.84 : x
  2. Step 2: Convert to fraction form
    252,099.50/378,149.24 = 172,973.84/x
  3. Step 3: Cross multiply
    252,099.50x = 378,149.24 × 172,973.84
  4. Step 4: Simplify right side
    252,099.50x = 65,409,926,135.88
  5. Step 5: Solve for x
    x = 65,409,926,135.88/252,099.50
  6. Step 6: Final answer
    x = 259,460.75

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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.