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Finding the Fourth Proportional to 251,300.30, 346,797.10 and 136,578.96

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Solution

The fourth proportional to 251,300.30, 346,797.10 and 136,578.96 is: 188,480.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    251,300.30 : 346,797.10 = 136,578.96 : x
  2. Step 2: Convert to fraction form
    251,300.30/346,797.10 = 136,578.96/x
  3. Step 3: Cross multiply
    251,300.30x = 346,797.10 × 136,578.96
  4. Step 4: Simplify right side
    251,300.30x = 47,365,187,249.02
  5. Step 5: Solve for x
    x = 47,365,187,249.02/251,300.30
  6. Step 6: Final answer
    x = 188,480.42

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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.