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Finding the Fourth Proportional to 103,549.78, 155,324.64 and 33,439.42

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Solution

The fourth proportional to 103,549.78, 155,324.64 and 33,439.42 is: 50,159.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,549.78 : 155,324.64 = 33,439.42 : x
  2. Step 2: Convert to fraction form
    103,549.78/155,324.64 = 33,439.42/x
  3. Step 3: Cross multiply
    103,549.78x = 155,324.64 × 33,439.42
  4. Step 4: Simplify right side
    103,549.78x = 5,193,965,873.31
  5. Step 5: Solve for x
    x = 5,193,965,873.31/103,549.78
  6. Step 6: Final answer
    x = 50,159.12

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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.