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Finding the Fourth Proportional to 252,860.82, 348,918.21 and 139,676.82

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Solution

The fourth proportional to 252,860.82, 348,918.21 and 139,676.82 is: 192,737.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    252,860.82 : 348,918.21 = 139,676.82 : x
  2. Step 2: Convert to fraction form
    252,860.82/348,918.21 = 139,676.82/x
  3. Step 3: Cross multiply
    252,860.82x = 348,918.21 × 139,676.82
  4. Step 4: Simplify right side
    252,860.82x = 48,735,786,012.89
  5. Step 5: Solve for x
    x = 48,735,786,012.89/252,860.82
  6. Step 6: Final answer
    x = 192,737.59

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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.