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Finding the Fourth Proportional to 187,959.84, 281,951.15 and 75,639.62

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Solution

The fourth proportional to 187,959.84, 281,951.15 and 75,639.62 is: 113,464.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,959.84 : 281,951.15 = 75,639.62 : x
  2. Step 2: Convert to fraction form
    187,959.84/281,951.15 = 75,639.62/x
  3. Step 3: Cross multiply
    187,959.84x = 281,951.15 × 75,639.62
  4. Step 4: Simplify right side
    187,959.84x = 21,326,677,844.56
  5. Step 5: Solve for x
    x = 21,326,677,844.56/187,959.84
  6. Step 6: Final answer
    x = 113,464.01

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.