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Finding the Fourth Proportional to 268,171.73, 370,109.77 and 154,994.48

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Solution

The fourth proportional to 268,171.73, 370,109.77 and 154,994.48 is: 213,911.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    268,171.73 : 370,109.77 = 154,994.48 : x
  2. Step 2: Convert to fraction form
    268,171.73/370,109.77 = 154,994.48/x
  3. Step 3: Cross multiply
    268,171.73x = 370,109.77 × 154,994.48
  4. Step 4: Simplify right side
    268,171.73x = 57,364,970,493.95
  5. Step 5: Solve for x
    x = 57,364,970,493.95/268,171.73
  6. Step 6: Final answer
    x = 213,911.33

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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.