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Finding the Fourth Proportional to 158,166.44, 218,269.67 and 86,546.46

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Solution

The fourth proportional to 158,166.44, 218,269.67 and 86,546.46 is: 119,434.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,166.44 : 218,269.67 = 86,546.46 : x
  2. Step 2: Convert to fraction form
    158,166.44/218,269.67 = 86,546.46/x
  3. Step 3: Cross multiply
    158,166.44x = 218,269.67 × 86,546.46
  4. Step 4: Simplify right side
    158,166.44x = 18,890,467,480.23
  5. Step 5: Solve for x
    x = 18,890,467,480.23/158,166.44
  6. Step 6: Final answer
    x = 119,434.11

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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.