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Finding the Fourth Proportional to 251,228.84, 346,711.30 and 143,796.42

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Solution

The fourth proportional to 251,228.84, 346,711.30 and 143,796.42 is: 198,447.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    251,228.84 : 346,711.30 = 143,796.42 : x
  2. Step 2: Convert to fraction form
    251,228.84/346,711.30 = 143,796.42/x
  3. Step 3: Cross multiply
    251,228.84x = 346,711.30 × 143,796.42
  4. Step 4: Simplify right side
    251,228.84x = 49,855,841,979.99
  5. Step 5: Solve for x
    x = 49,855,841,979.99/251,228.84
  6. Step 6: Final answer
    x = 198,447.92

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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.