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Finding the Fourth Proportional to 79,284.92, 118,947.20 and 55,956.92

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Solution

The fourth proportional to 79,284.92, 118,947.20 and 55,956.92 is: 83,949.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,284.92 : 118,947.20 = 55,956.92 : x
  2. Step 2: Convert to fraction form
    79,284.92/118,947.20 = 55,956.92/x
  3. Step 3: Cross multiply
    79,284.92x = 118,947.20 × 55,956.92
  4. Step 4: Simplify right side
    79,284.92x = 6,655,918,954.62
  5. Step 5: Solve for x
    x = 6,655,918,954.62/79,284.92
  6. Step 6: Final answer
    x = 83,949.37

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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.