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Finding the Fourth Proportional to 166,691, 230,033.58 and 91,239.50

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Solution

The fourth proportional to 166,691, 230,033.58 and 91,239.50 is: 125,910.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    166,691 : 230,033.58 = 91,239.50 : x
  2. Step 2: Convert to fraction form
    166,691/230,033.58 = 91,239.50/x
  3. Step 3: Cross multiply
    166,691x = 230,033.58 × 91,239.50
  4. Step 4: Simplify right side
    166,691x = 20,988,148,822.41
  5. Step 5: Solve for x
    x = 20,988,148,822.41/166,691
  6. Step 6: Final answer
    x = 125,910.51

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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.