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Finding the Fourth Proportional to 168,216.80, 232,138.40 and 92,765.30

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Solution

The fourth proportional to 168,216.80, 232,138.40 and 92,765.30 is: 128,015.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,216.80 : 232,138.40 = 92,765.30 : x
  2. Step 2: Convert to fraction form
    168,216.80/232,138.40 = 92,765.30/x
  3. Step 3: Cross multiply
    168,216.80x = 232,138.40 × 92,765.30
  4. Step 4: Simplify right side
    168,216.80x = 21,534,388,317.52
  5. Step 5: Solve for x
    x = 21,534,388,317.52/168,216.80
  6. Step 6: Final answer
    x = 128,015.68

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