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Finding the Fourth Proportional to 172,942.84, 259,493.08 and 88,762.11

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Solution

The fourth proportional to 172,942.84, 259,493.08 and 88,762.11 is: 133,183.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,942.84 : 259,493.08 = 88,762.11 : x
  2. Step 2: Convert to fraction form
    172,942.84/259,493.08 = 88,762.11/x
  3. Step 3: Cross multiply
    172,942.84x = 259,493.08 × 88,762.11
  4. Step 4: Simplify right side
    172,942.84x = 23,033,152,867.39
  5. Step 5: Solve for x
    x = 23,033,152,867.39/172,942.84
  6. Step 6: Final answer
    x = 133,183.62

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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.