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Finding the Fourth Proportional to 356,660.56, 535,042.68 and 190,357.84

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Solution

The fourth proportional to 356,660.56, 535,042.68 and 190,357.84 is: 285,564.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    356,660.56 : 535,042.68 = 190,357.84 : x
  2. Step 2: Convert to fraction form
    356,660.56/535,042.68 = 190,357.84/x
  3. Step 3: Cross multiply
    356,660.56x = 535,042.68 × 190,357.84
  4. Step 4: Simplify right side
    356,660.56x = 101,849,568,872.61
  5. Step 5: Solve for x
    x = 101,849,568,872.61/356,660.56
  6. Step 6: Final answer
    x = 285,564.43

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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.