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Finding the Fourth Proportional to 408,111.75, 612,181.33 and 183,472.90

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Solution

The fourth proportional to 408,111.75, 612,181.33 and 183,472.90 is: 275,215.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    408,111.75 : 612,181.33 = 183,472.90 : x
  2. Step 2: Convert to fraction form
    408,111.75/612,181.33 = 183,472.90/x
  3. Step 3: Cross multiply
    408,111.75x = 612,181.33 × 183,472.90
  4. Step 4: Simplify right side
    408,111.75x = 112,318,681,951.82
  5. Step 5: Solve for x
    x = 112,318,681,951.82/408,111.75
  6. Step 6: Final answer
    x = 275,215.51

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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.