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Finding the Fourth Proportional to 117,305.82, 175,921.67 and 38,401.90

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Solution

The fourth proportional to 117,305.82, 175,921.67 and 38,401.90 is: 57,590.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,305.82 : 175,921.67 = 38,401.90 : x
  2. Step 2: Convert to fraction form
    117,305.82/175,921.67 = 38,401.90/x
  3. Step 3: Cross multiply
    117,305.82x = 175,921.67 × 38,401.90
  4. Step 4: Simplify right side
    117,305.82x = 6,755,726,035.37
  5. Step 5: Solve for x
    x = 6,755,726,035.37/117,305.82
  6. Step 6: Final answer
    x = 57,590.71

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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.