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Finding the Fourth Proportional to 218,449.53, 327,254.43 and 133,963.32

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Solution

The fourth proportional to 218,449.53, 327,254.43 and 133,963.32 is: 200,687.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,449.53 : 327,254.43 = 133,963.32 : x
  2. Step 2: Convert to fraction form
    218,449.53/327,254.43 = 133,963.32/x
  3. Step 3: Cross multiply
    218,449.53x = 327,254.43 × 133,963.32
  4. Step 4: Simplify right side
    218,449.53x = 43,840,089,927.51
  5. Step 5: Solve for x
    x = 43,840,089,927.51/218,449.53
  6. Step 6: Final answer
    x = 200,687.50

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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.