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Finding the Fourth Proportional to 166,998.59, 230,472.63 and 91,561.67

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Solution

The fourth proportional to 166,998.59, 230,472.63 and 91,561.67 is: 126,363.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    166,998.59 : 230,472.63 = 91,561.67 : x
  2. Step 2: Convert to fraction form
    166,998.59/230,472.63 = 91,561.67/x
  3. Step 3: Cross multiply
    166,998.59x = 230,472.63 × 91,561.67
  4. Step 4: Simplify right side
    166,998.59x = 21,102,457,827.04
  5. Step 5: Solve for x
    x = 21,102,457,827.04/166,998.59
  6. Step 6: Final answer
    x = 126,363.09

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.