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Finding the Fourth Proportional to 167,163, 230,688.99 and 91,711.50

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Solution

The fourth proportional to 167,163, 230,688.99 and 91,711.50 is: 126,564.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    167,163 : 230,688.99 = 91,711.50 : x
  2. Step 2: Convert to fraction form
    167,163/230,688.99 = 91,711.50/x
  3. Step 3: Cross multiply
    167,163x = 230,688.99 × 91,711.50
  4. Step 4: Simplify right side
    167,163x = 21,156,833,306.39
  5. Step 5: Solve for x
    x = 21,156,833,306.39/167,163
  6. Step 6: Final answer
    x = 126,564.09

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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.