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Finding the Fourth Proportional to 218,444.62, 327,784.66 and 92,172.38

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Solution

The fourth proportional to 218,444.62, 327,784.66 and 92,172.38 is: 138,308.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,444.62 : 327,784.66 = 92,172.38 : x
  2. Step 2: Convert to fraction form
    218,444.62/327,784.66 = 92,172.38/x
  3. Step 3: Cross multiply
    218,444.62x = 327,784.66 × 92,172.38
  4. Step 4: Simplify right side
    218,444.62x = 30,212,692,239.69
  5. Step 5: Solve for x
    x = 30,212,692,239.69/218,444.62
  6. Step 6: Final answer
    x = 138,308.25

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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.