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Finding the Fourth Proportional to 201,178.38, 277,631.15 and 110,540.21

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Solution

The fourth proportional to 201,178.38, 277,631.15 and 110,540.21 is: 152,548.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,178.38 : 277,631.15 = 110,540.21 : x
  2. Step 2: Convert to fraction form
    201,178.38/277,631.15 = 110,540.21/x
  3. Step 3: Cross multiply
    201,178.38x = 277,631.15 × 110,540.21
  4. Step 4: Simplify right side
    201,178.38x = 30,689,405,623.54
  5. Step 5: Solve for x
    x = 30,689,405,623.54/201,178.38
  6. Step 6: Final answer
    x = 152,548.23

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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.