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Finding the Fourth Proportional to 251,101.56, 346,435.68 and 142,191

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Solution

The fourth proportional to 251,101.56, 346,435.68 and 142,191 is: 196,175.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    251,101.56 : 346,435.68 = 142,191 : x
  2. Step 2: Convert to fraction form
    251,101.56/346,435.68 = 142,191/x
  3. Step 3: Cross multiply
    251,101.56x = 346,435.68 × 142,191
  4. Step 4: Simplify right side
    251,101.56x = 49,260,035,774.88
  5. Step 5: Solve for x
    x = 49,260,035,774.88/251,101.56
  6. Step 6: Final answer
    x = 196,175.75

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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.