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Finding the Fourth Proportional to 79,906.71, 119,775.80 and 26,584.41

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Solution

The fourth proportional to 79,906.71, 119,775.80 and 26,584.41 is: 39,848.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,906.71 : 119,775.80 = 26,584.41 : x
  2. Step 2: Convert to fraction form
    79,906.71/119,775.80 = 26,584.41/x
  3. Step 3: Cross multiply
    79,906.71x = 119,775.80 × 26,584.41
  4. Step 4: Simplify right side
    79,906.71x = 3,184,168,817.16
  5. Step 5: Solve for x
    x = 3,184,168,817.16/79,906.71
  6. Step 6: Final answer
    x = 39,848.58

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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.