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Finding the Fourth Proportional to 79,073.34, 118,478.39 and 55,650.57

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Solution

The fourth proportional to 79,073.34, 118,478.39 and 55,650.57 is: 83,383.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,073.34 : 118,478.39 = 55,650.57 : x
  2. Step 2: Convert to fraction form
    79,073.34/118,478.39 = 55,650.57/x
  3. Step 3: Cross multiply
    79,073.34x = 118,478.39 × 55,650.57
  4. Step 4: Simplify right side
    79,073.34x = 6,593,389,657.93
  5. Step 5: Solve for x
    x = 6,593,389,657.93/79,073.34
  6. Step 6: Final answer
    x = 83,383.22

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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.