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Finding the Fourth Proportional to 255,755.54, 352,961.90 and 148,324.61

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Solution

The fourth proportional to 255,755.54, 352,961.90 and 148,324.61 is: 204,699.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    255,755.54 : 352,961.90 = 148,324.61 : x
  2. Step 2: Convert to fraction form
    255,755.54/352,961.90 = 148,324.61/x
  3. Step 3: Cross multiply
    255,755.54x = 352,961.90 × 148,324.61
  4. Step 4: Simplify right side
    255,755.54x = 52,352,933,655.93
  5. Step 5: Solve for x
    x = 52,352,933,655.93/255,755.54
  6. Step 6: Final answer
    x = 204,699.12

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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.