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Finding the Fourth Proportional to 192,511, 288,883.14 and 81,703

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Solution

The fourth proportional to 192,511, 288,883.14 and 81,703 is: 122,604.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    192,511 : 288,883.14 = 81,703 : x
  2. Step 2: Convert to fraction form
    192,511/288,883.14 = 81,703/x
  3. Step 3: Cross multiply
    192,511x = 288,883.14 × 81,703
  4. Step 4: Simplify right side
    192,511x = 23,602,619,187.42
  5. Step 5: Solve for x
    x = 23,602,619,187.42/192,511
  6. Step 6: Final answer
    x = 122,604.00

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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.