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Finding the Fourth Proportional to 118,951.90, 164,153.37 and 68,650.90

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Solution

The fourth proportional to 118,951.90, 164,153.37 and 68,650.90 is: 94,738.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,951.90 : 164,153.37 = 68,650.90 : x
  2. Step 2: Convert to fraction form
    118,951.90/164,153.37 = 68,650.90/x
  3. Step 3: Cross multiply
    118,951.90x = 164,153.37 × 68,650.90
  4. Step 4: Simplify right side
    118,951.90x = 11,269,276,588.53
  5. Step 5: Solve for x
    x = 11,269,276,588.53/118,951.90
  6. Step 6: Final answer
    x = 94,738.10

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.