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Finding the Fourth Proportional to 343,676.88, 515,719.44 and 185,901.84

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Solution

The fourth proportional to 343,676.88, 515,719.44 and 185,901.84 is: 278,963.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    343,676.88 : 515,719.44 = 185,901.84 : x
  2. Step 2: Convert to fraction form
    343,676.88/515,719.44 = 185,901.84/x
  3. Step 3: Cross multiply
    343,676.88x = 515,719.44 × 185,901.84
  4. Step 4: Simplify right side
    343,676.88x = 95,873,192,819.77
  5. Step 5: Solve for x
    x = 95,873,192,819.77/343,676.88
  6. Step 6: Final answer
    x = 278,963.17

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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.