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Finding the Fourth Proportional to 192,874.49, 289,330.77 and 66,498.11

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Solution

The fourth proportional to 192,874.49, 289,330.77 and 66,498.11 is: 99,753.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    192,874.49 : 289,330.77 = 66,498.11 : x
  2. Step 2: Convert to fraction form
    192,874.49/289,330.77 = 66,498.11/x
  3. Step 3: Cross multiply
    192,874.49x = 289,330.77 × 66,498.11
  4. Step 4: Simplify right side
    192,874.49x = 19,239,950,093.17
  5. Step 5: Solve for x
    x = 19,239,950,093.17/192,874.49
  6. Step 6: Final answer
    x = 99,753.73

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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.