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Finding the Fourth Proportional to 254,694.17, 351,455.00 and 139,971.44

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Solution

The fourth proportional to 254,694.17, 351,455.00 and 139,971.44 is: 193,147.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    254,694.17 : 351,455.00 = 139,971.44 : x
  2. Step 2: Convert to fraction form
    254,694.17/351,455.00 = 139,971.44/x
  3. Step 3: Cross multiply
    254,694.17x = 351,455.00 × 139,971.44
  4. Step 4: Simplify right side
    254,694.17x = 49,193,659,988.07
  5. Step 5: Solve for x
    x = 49,193,659,988.07/254,694.17
  6. Step 6: Final answer
    x = 193,147.97

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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.