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Finding the Fourth Proportional to 251,195.92, 346,630.26 and 143,741.32

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Solution

The fourth proportional to 251,195.92, 346,630.26 and 143,741.32 is: 198,351.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    251,195.92 : 346,630.26 = 143,741.32 : x
  2. Step 2: Convert to fraction form
    251,195.92/346,630.26 = 143,741.32/x
  3. Step 3: Cross multiply
    251,195.92x = 346,630.26 × 143,741.32
  4. Step 4: Simplify right side
    251,195.92x = 49,825,091,124.34
  5. Step 5: Solve for x
    x = 49,825,091,124.34/251,195.92
  6. Step 6: Final answer
    x = 198,351.51

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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.