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Finding the Fourth Proportional to 361,890.99, 542,282.92 and 193,435.29

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Solution

The fourth proportional to 361,890.99, 542,282.92 and 193,435.29 is: 289,857.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    361,890.99 : 542,282.92 = 193,435.29 : x
  2. Step 2: Convert to fraction form
    361,890.99/542,282.92 = 193,435.29/x
  3. Step 3: Cross multiply
    361,890.99x = 542,282.92 × 193,435.29
  4. Step 4: Simplify right side
    361,890.99x = 104,896,653,408.66
  5. Step 5: Solve for x
    x = 104,896,653,408.66/361,890.99
  6. Step 6: Final answer
    x = 289,857.05

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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.