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Finding the Fourth Proportional to 172,875.25, 259,414.94 and 73,028.98

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Solution

The fourth proportional to 172,875.25, 259,414.94 and 73,028.98 is: 109,586.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,875.25 : 259,414.94 = 73,028.98 : x
  2. Step 2: Convert to fraction form
    172,875.25/259,414.94 = 73,028.98/x
  3. Step 3: Cross multiply
    172,875.25x = 259,414.94 × 73,028.98
  4. Step 4: Simplify right side
    172,875.25x = 18,944,808,464.96
  5. Step 5: Solve for x
    x = 18,944,808,464.96/172,875.25
  6. Step 6: Final answer
    x = 109,586.59

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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.