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Finding the Fourth Proportional to 343,694.91, 474,282.21 and 190,731.27

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Solution

The fourth proportional to 343,694.91, 474,282.21 and 190,731.27 is: 263,199.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    343,694.91 : 474,282.21 = 190,731.27 : x
  2. Step 2: Convert to fraction form
    343,694.91/474,282.21 = 190,731.27/x
  3. Step 3: Cross multiply
    343,694.91x = 474,282.21 × 190,731.27
  4. Step 4: Simplify right side
    343,694.91x = 90,460,448,251.71
  5. Step 5: Solve for x
    x = 90,460,448,251.71/343,694.91
  6. Step 6: Final answer
    x = 263,199.85

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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.