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Finding the Fourth Proportional to 251,371.55, 346,894.99 and 136,650.41

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Solution

The fourth proportional to 251,371.55, 346,894.99 and 136,650.41 is: 188,578.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    251,371.55 : 346,894.99 = 136,650.41 : x
  2. Step 2: Convert to fraction form
    251,371.55/346,894.99 = 136,650.41/x
  3. Step 3: Cross multiply
    251,371.55x = 346,894.99 × 136,650.41
  4. Step 4: Simplify right side
    251,371.55x = 47,403,342,610.45
  5. Step 5: Solve for x
    x = 47,403,342,610.45/251,371.55
  6. Step 6: Final answer
    x = 188,578.79

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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.