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Finding the Fourth Proportional to 79,009.63, 118,517.91 and 22,855.42

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Solution

The fourth proportional to 79,009.63, 118,517.91 and 22,855.42 is: 34,284.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,009.63 : 118,517.91 = 22,855.42 : x
  2. Step 2: Convert to fraction form
    79,009.63/118,517.91 = 22,855.42/x
  3. Step 3: Cross multiply
    79,009.63x = 118,517.91 × 22,855.42
  4. Step 4: Simplify right side
    79,009.63x = 2,708,775,903.71
  5. Step 5: Solve for x
    x = 2,708,775,903.71/79,009.63
  6. Step 6: Final answer
    x = 34,284.12

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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.