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Finding the Fourth Proportional to 276,951.39, 382,194.59 and 154,451.51

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Solution

The fourth proportional to 276,951.39, 382,194.59 and 154,451.51 is: 213,144.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    276,951.39 : 382,194.59 = 154,451.51 : x
  2. Step 2: Convert to fraction form
    276,951.39/382,194.59 = 154,451.51/x
  3. Step 3: Cross multiply
    276,951.39x = 382,194.59 × 154,451.51
  4. Step 4: Simplify right side
    276,951.39x = 59,030,531,539.33
  5. Step 5: Solve for x
    x = 59,030,531,539.33/276,951.39
  6. Step 6: Final answer
    x = 213,144.02

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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.