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Finding the Fourth Proportional to 194,553.60, 268,617.60 and 146,860.80

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Solution

The fourth proportional to 194,553.60, 268,617.60 and 146,860.80 is: 202,768.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    194,553.60 : 268,617.60 = 146,860.80 : x
  2. Step 2: Convert to fraction form
    194,553.60/268,617.60 = 146,860.80/x
  3. Step 3: Cross multiply
    194,553.60x = 268,617.60 × 146,860.80
  4. Step 4: Simplify right side
    194,553.60x = 39,449,395,630.08
  5. Step 5: Solve for x
    x = 39,449,395,630.08/194,553.60
  6. Step 6: Final answer
    x = 202,768.78

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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.