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Finding the Fourth Proportional to 251,908.60, 376,988.10 and 173,176.60

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Solution

The fourth proportional to 251,908.60, 376,988.10 and 173,176.60 is: 259,163.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    251,908.60 : 376,988.10 = 173,176.60 : x
  2. Step 2: Convert to fraction form
    251,908.60/376,988.10 = 173,176.60/x
  3. Step 3: Cross multiply
    251,908.60x = 376,988.10 × 173,176.60
  4. Step 4: Simplify right side
    251,908.60x = 65,285,517,398.46
  5. Step 5: Solve for x
    x = 65,285,517,398.46/251,908.60
  6. Step 6: Final answer
    x = 259,163.51

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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.