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Finding the Fourth Proportional to 254,753.86, 382,139.30 and 114,512.90

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Solution

The fourth proportional to 254,753.86, 382,139.30 and 114,512.90 is: 171,773.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    254,753.86 : 382,139.30 = 114,512.90 : x
  2. Step 2: Convert to fraction form
    254,753.86/382,139.30 = 114,512.90/x
  3. Step 3: Cross multiply
    254,753.86x = 382,139.30 × 114,512.90
  4. Step 4: Simplify right side
    254,753.86x = 43,759,879,446.97
  5. Step 5: Solve for x
    x = 43,759,879,446.97/254,753.86
  6. Step 6: Final answer
    x = 171,773.18

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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.