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Finding the Fourth Proportional to 164,269.66, 226,691.67 and 91,671.78

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Solution

The fourth proportional to 164,269.66, 226,691.67 and 91,671.78 is: 126,506.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    164,269.66 : 226,691.67 = 91,671.78 : x
  2. Step 2: Convert to fraction form
    164,269.66/226,691.67 = 91,671.78/x
  3. Step 3: Cross multiply
    164,269.66x = 226,691.67 × 91,671.78
  4. Step 4: Simplify right side
    164,269.66x = 20,781,228,900.07
  5. Step 5: Solve for x
    x = 20,781,228,900.07/164,269.66
  6. Step 6: Final answer
    x = 126,506.80

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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.