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Finding the Fourth Proportional to 218,457.73, 327,813.96 and 92,090.23

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Solution

The fourth proportional to 218,457.73, 327,813.96 and 92,090.23 is: 138,189.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,457.73 : 327,813.96 = 92,090.23 : x
  2. Step 2: Convert to fraction form
    218,457.73/327,813.96 = 92,090.23/x
  3. Step 3: Cross multiply
    218,457.73x = 327,813.96 × 92,090.23
  4. Step 4: Simplify right side
    218,457.73x = 30,188,462,973.61
  5. Step 5: Solve for x
    x = 30,188,462,973.61/218,457.73
  6. Step 6: Final answer
    x = 138,189.04

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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.