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Finding the Fourth Proportional to 181,692.58, 272,538.95 and 81,736.02

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Solution

The fourth proportional to 181,692.58, 272,538.95 and 81,736.02 is: 122,604.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    181,692.58 : 272,538.95 = 81,736.02 : x
  2. Step 2: Convert to fraction form
    181,692.58/272,538.95 = 81,736.02/x
  3. Step 3: Cross multiply
    181,692.58x = 272,538.95 × 81,736.02
  4. Step 4: Simplify right side
    181,692.58x = 22,276,249,067.98
  5. Step 5: Solve for x
    x = 22,276,249,067.98/181,692.58
  6. Step 6: Final answer
    x = 122,604.07

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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.