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Finding the Fourth Proportional to 167,374.88, 252,213.68 and 138,443.84

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Solution

The fourth proportional to 167,374.88, 252,213.68 and 138,443.84 is: 208,618.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    167,374.88 : 252,213.68 = 138,443.84 : x
  2. Step 2: Convert to fraction form
    167,374.88/252,213.68 = 138,443.84/x
  3. Step 3: Cross multiply
    167,374.88x = 252,213.68 × 138,443.84
  4. Step 4: Simplify right side
    167,374.88x = 34,917,430,359.73
  5. Step 5: Solve for x
    x = 34,917,430,359.73/167,374.88
  6. Step 6: Final answer
    x = 208,618.11

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.