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Finding the Fourth Proportional to 208,682.08, 287,939.28 and 132,231.04

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Solution

The fourth proportional to 208,682.08, 287,939.28 and 132,231.04 is: 182,452.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,682.08 : 287,939.28 = 132,231.04 : x
  2. Step 2: Convert to fraction form
    208,682.08/287,939.28 = 132,231.04/x
  3. Step 3: Cross multiply
    208,682.08x = 287,939.28 × 132,231.04
  4. Step 4: Simplify right side
    208,682.08x = 38,074,510,451.25
  5. Step 5: Solve for x
    x = 38,074,510,451.25/208,682.08
  6. Step 6: Final answer
    x = 182,452.23

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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.