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Finding the Fourth Proportional to 79,362.95, 109,520.52 and 43,553.54

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Solution

The fourth proportional to 79,362.95, 109,520.52 and 43,553.54 is: 60,103.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,362.95 : 109,520.52 = 43,553.54 : x
  2. Step 2: Convert to fraction form
    79,362.95/109,520.52 = 43,553.54/x
  3. Step 3: Cross multiply
    79,362.95x = 109,520.52 × 43,553.54
  4. Step 4: Simplify right side
    79,362.95x = 4,770,005,801.04
  5. Step 5: Solve for x
    x = 4,770,005,801.04/79,362.95
  6. Step 6: Final answer
    x = 60,103.69

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.