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Finding the Fourth Proportional to 251,062.82, 346,469.42 and 137,885.56

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Solution

The fourth proportional to 251,062.82, 346,469.42 and 137,885.56 is: 190,283.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    251,062.82 : 346,469.42 = 137,885.56 : x
  2. Step 2: Convert to fraction form
    251,062.82/346,469.42 = 137,885.56/x
  3. Step 3: Cross multiply
    251,062.82x = 346,469.42 × 137,885.56
  4. Step 4: Simplify right side
    251,062.82x = 47,773,129,999.58
  5. Step 5: Solve for x
    x = 47,773,129,999.58/251,062.82
  6. Step 6: Final answer
    x = 190,283.57

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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.