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Finding the Fourth Proportional to 218,502.97, 327,594.07 and 92,138.11

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Solution

The fourth proportional to 218,502.97, 327,594.07 and 92,138.11 is: 138,139.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,502.97 : 327,594.07 = 92,138.11 : x
  2. Step 2: Convert to fraction form
    218,502.97/327,594.07 = 92,138.11/x
  3. Step 3: Cross multiply
    218,502.97x = 327,594.07 × 92,138.11
  4. Step 4: Simplify right side
    218,502.97x = 30,183,898,457.01
  5. Step 5: Solve for x
    x = 30,183,898,457.01/218,502.97
  6. Step 6: Final answer
    x = 138,139.53

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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.