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Finding the Fourth Proportional to 79,556.30, 109,786.87 and 59,229.26

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Solution

The fourth proportional to 79,556.30, 109,786.87 and 59,229.26 is: 81,735.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,556.30 : 109,786.87 = 59,229.26 : x
  2. Step 2: Convert to fraction form
    79,556.30/109,786.87 = 59,229.26/x
  3. Step 3: Cross multiply
    79,556.30x = 109,786.87 × 59,229.26
  4. Step 4: Simplify right side
    79,556.30x = 6,502,594,370.81
  5. Step 5: Solve for x
    x = 6,502,594,370.81/79,556.30
  6. Step 6: Final answer
    x = 81,735.75

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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.