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Finding the Fourth Proportional to 133,481.99, 200,181.71 and 38,719.15

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Solution

The fourth proportional to 133,481.99, 200,181.71 and 38,719.15 is: 58,066.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,481.99 : 200,181.71 = 38,719.15 : x
  2. Step 2: Convert to fraction form
    133,481.99/200,181.71 = 38,719.15/x
  3. Step 3: Cross multiply
    133,481.99x = 200,181.71 × 38,719.15
  4. Step 4: Simplify right side
    133,481.99x = 7,750,865,253.09
  5. Step 5: Solve for x
    x = 7,750,865,253.09/133,481.99
  6. Step 6: Final answer
    x = 58,066.75

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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.