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Finding the Fourth Proportional to 235,188, 352,840.59 and 68,976

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Solution

The fourth proportional to 235,188, 352,840.59 and 68,976 is: 103,481.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    235,188 : 352,840.59 = 68,976 : x
  2. Step 2: Convert to fraction form
    235,188/352,840.59 = 68,976/x
  3. Step 3: Cross multiply
    235,188x = 352,840.59 × 68,976
  4. Step 4: Simplify right side
    235,188x = 24,337,532,535.84
  5. Step 5: Solve for x
    x = 24,337,532,535.84/235,188
  6. Step 6: Final answer
    x = 103,481.18

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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.