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Finding the Fourth Proportional to 174,682.20, 262,023.30 and 81,370.20

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Solution

The fourth proportional to 174,682.20, 262,023.30 and 81,370.20 is: 122,055.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    174,682.20 : 262,023.30 = 81,370.20 : x
  2. Step 2: Convert to fraction form
    174,682.20/262,023.30 = 81,370.20/x
  3. Step 3: Cross multiply
    174,682.20x = 262,023.30 × 81,370.20
  4. Step 4: Simplify right side
    174,682.20x = 21,320,888,325.66
  5. Step 5: Solve for x
    x = 21,320,888,325.66/174,682.20
  6. Step 6: Final answer
    x = 122,055.30

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.