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Finding the Fourth Proportional to 133,755.10, 200,635.38 and 38,992.39

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Solution

The fourth proportional to 133,755.10, 200,635.38 and 38,992.39 is: 58,489.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,755.10 : 200,635.38 = 38,992.39 : x
  2. Step 2: Convert to fraction form
    133,755.10/200,635.38 = 38,992.39/x
  3. Step 3: Cross multiply
    133,755.10x = 200,635.38 × 38,992.39
  4. Step 4: Simplify right side
    133,755.10x = 7,823,252,483.17
  5. Step 5: Solve for x
    x = 7,823,252,483.17/133,755.10
  6. Step 6: Final answer
    x = 58,489.38

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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.