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Finding the Fourth Proportional to 218,495.56, 327,870.54 and 92,127.88

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Solution

The fourth proportional to 218,495.56, 327,870.54 and 92,127.88 is: 138,245.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,495.56 : 327,870.54 = 92,127.88 : x
  2. Step 2: Convert to fraction form
    218,495.56/327,870.54 = 92,127.88/x
  3. Step 3: Cross multiply
    218,495.56x = 327,870.54 × 92,127.88
  4. Step 4: Simplify right side
    218,495.56x = 30,206,017,764.66
  5. Step 5: Solve for x
    x = 30,206,017,764.66/218,495.56
  6. Step 6: Final answer
    x = 138,245.45

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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.