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Finding the Fourth Proportional to 118,972.13, 164,188.01 and 68,687.33

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Solution

The fourth proportional to 118,972.13, 164,188.01 and 68,687.33 is: 94,792.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,972.13 : 164,188.01 = 68,687.33 : x
  2. Step 2: Convert to fraction form
    118,972.13/164,188.01 = 68,687.33/x
  3. Step 3: Cross multiply
    118,972.13x = 164,188.01 × 68,687.33
  4. Step 4: Simplify right side
    118,972.13x = 11,277,635,375.69
  5. Step 5: Solve for x
    x = 11,277,635,375.69/118,972.13
  6. Step 6: Final answer
    x = 94,792.25

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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.