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Finding the Fourth Proportional to 104,238.66, 156,357.72 and 73,212.42

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Solution

The fourth proportional to 104,238.66, 156,357.72 and 73,212.42 is: 109,818.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,238.66 : 156,357.72 = 73,212.42 : x
  2. Step 2: Convert to fraction form
    104,238.66/156,357.72 = 73,212.42/x
  3. Step 3: Cross multiply
    104,238.66x = 156,357.72 × 73,212.42
  4. Step 4: Simplify right side
    104,238.66x = 11,447,327,066.88
  5. Step 5: Solve for x
    x = 11,447,327,066.88/104,238.66
  6. Step 6: Final answer
    x = 109,818.44

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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.