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Finding the Fourth Proportional to 261,027.20, 391,540.80 and 182,295.20

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Solution

The fourth proportional to 261,027.20, 391,540.80 and 182,295.20 is: 273,442.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    261,027.20 : 391,540.80 = 182,295.20 : x
  2. Step 2: Convert to fraction form
    261,027.20/391,540.80 = 182,295.20/x
  3. Step 3: Cross multiply
    261,027.20x = 391,540.80 × 182,295.20
  4. Step 4: Simplify right side
    261,027.20x = 71,376,008,444.16
  5. Step 5: Solve for x
    x = 71,376,008,444.16/261,027.20
  6. Step 6: Final answer
    x = 273,442.80

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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.