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Finding the Fourth Proportional to 133,322.55, 199,492.42 and 80,046.91

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Solution

The fourth proportional to 133,322.55, 199,492.42 and 80,046.91 is: 119,775.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,322.55 : 199,492.42 = 80,046.91 : x
  2. Step 2: Convert to fraction form
    133,322.55/199,492.42 = 80,046.91/x
  3. Step 3: Cross multiply
    133,322.55x = 199,492.42 × 80,046.91
  4. Step 4: Simplify right side
    133,322.55x = 15,968,751,789.42
  5. Step 5: Solve for x
    x = 15,968,751,789.42/133,322.55
  6. Step 6: Final answer
    x = 119,775.33

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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.