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Finding the Fourth Proportional to 250,612.64, 345,839.28 and 135,884.96

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Solution

The fourth proportional to 250,612.64, 345,839.28 and 135,884.96 is: 187,517.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    250,612.64 : 345,839.28 = 135,884.96 : x
  2. Step 2: Convert to fraction form
    250,612.64/345,839.28 = 135,884.96/x
  3. Step 3: Cross multiply
    250,612.64x = 345,839.28 × 135,884.96
  4. Step 4: Simplify right side
    250,612.64x = 46,994,356,729.23
  5. Step 5: Solve for x
    x = 46,994,356,729.23/250,612.64
  6. Step 6: Final answer
    x = 187,517.90

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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.