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Finding the Fourth Proportional to 264,510.71, 396,781.08 and 84,611.94

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Solution

The fourth proportional to 264,510.71, 396,781.08 and 84,611.94 is: 126,922.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    264,510.71 : 396,781.08 = 84,611.94 : x
  2. Step 2: Convert to fraction form
    264,510.71/396,781.08 = 84,611.94/x
  3. Step 3: Cross multiply
    264,510.71x = 396,781.08 × 84,611.94
  4. Step 4: Simplify right side
    264,510.71x = 33,572,417,836.71
  5. Step 5: Solve for x
    x = 33,572,417,836.71/264,510.71
  6. Step 6: Final answer
    x = 126,922.71

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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.