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Finding the Fourth Proportional to 181,263.40, 271,480.92 and 86,559.92

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Solution

The fourth proportional to 181,263.40, 271,480.92 and 86,559.92 is: 129,642.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    181,263.40 : 271,480.92 = 86,559.92 : x
  2. Step 2: Convert to fraction form
    181,263.40/271,480.92 = 86,559.92/x
  3. Step 3: Cross multiply
    181,263.40x = 271,480.92 × 86,559.92
  4. Step 4: Simplify right side
    181,263.40x = 23,499,366,716.73
  5. Step 5: Solve for x
    x = 23,499,366,716.73/181,263.40
  6. Step 6: Final answer
    x = 129,642.09

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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.