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Finding the Fourth Proportional to 133,834.88, 184,692.12 and 74,218.88

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Solution

The fourth proportional to 133,834.88, 184,692.12 and 74,218.88 is: 102,422.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,834.88 : 184,692.12 = 74,218.88 : x
  2. Step 2: Convert to fraction form
    133,834.88/184,692.12 = 74,218.88/x
  3. Step 3: Cross multiply
    133,834.88x = 184,692.12 × 74,218.88
  4. Step 4: Simplify right side
    133,834.88x = 13,707,642,291.23
  5. Step 5: Solve for x
    x = 13,707,642,291.23/133,834.88
  6. Step 6: Final answer
    x = 102,422.05

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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.