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Finding the Fourth Proportional to 203,476.90, 305,215.35 and 181,704.10

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Solution

The fourth proportional to 203,476.90, 305,215.35 and 181,704.10 is: 272,556.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,476.90 : 305,215.35 = 181,704.10 : x
  2. Step 2: Convert to fraction form
    203,476.90/305,215.35 = 181,704.10/x
  3. Step 3: Cross multiply
    203,476.90x = 305,215.35 × 181,704.10
  4. Step 4: Simplify right side
    203,476.90x = 55,458,880,477.94
  5. Step 5: Solve for x
    x = 55,458,880,477.94/203,476.90
  6. Step 6: Final answer
    x = 272,556.15

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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.