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Finding the Fourth Proportional to 78,590.46, 117,910.26 and 50,542.17

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Solution

The fourth proportional to 78,590.46, 117,910.26 and 50,542.17 is: 75,829.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,590.46 : 117,910.26 = 50,542.17 : x
  2. Step 2: Convert to fraction form
    78,590.46/117,910.26 = 50,542.17/x
  3. Step 3: Cross multiply
    78,590.46x = 117,910.26 × 50,542.17
  4. Step 4: Simplify right side
    78,590.46x = 5,959,440,405.66
  5. Step 5: Solve for x
    x = 5,959,440,405.66/78,590.46
  6. Step 6: Final answer
    x = 75,829.06

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.