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Finding the Fourth Proportional to 186,092.88, 279,213.84 and 67,772.40

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Solution

The fourth proportional to 186,092.88, 279,213.84 and 67,772.40 is: 101,685.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,092.88 : 279,213.84 = 67,772.40 : x
  2. Step 2: Convert to fraction form
    186,092.88/279,213.84 = 67,772.40/x
  3. Step 3: Cross multiply
    186,092.88x = 279,213.84 × 67,772.40
  4. Step 4: Simplify right side
    186,092.88x = 18,922,992,050.02
  5. Step 5: Solve for x
    x = 18,922,992,050.02/186,092.88
  6. Step 6: Final answer
    x = 101,685.74

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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.